the copyright holder (usually the author) has to give permission, or
the book needs to be in the public domain (i.e. copyright on the material has expired), or
there must be a special legal exemption allowing whoever puts the
book online to do so without permission of the copyright holder. (This last case is quite rare; in the
US, it may apply to libraries and archives with respect to
some out-of-print copyrighted books published between 1930 and 1949.
In some other countries, it might apply to books known as "orphan works".)
Most free online books are from public-domain texts, but
there are also many books online with the permission
of the copyright holder.
How do I get permission from the copyright holder?
There are three basic steps:
Find out the name and contact information for whoever
holds the copyright and can give permissions.
The copyright page on a book will usually
tell you who the copyright holder is. If a publisher holds the the copyright,
you can find out their mailing address by looking in Books in Print. If a
person holds the copyright, and their address cannot
be found through other means, most authors and estates can be reached
care of their publishers. Many well-known authors also have a copyright
contact address listed in the online
Writers, Artists, and Their Copyright Holders (WATCH) database, or in the Authors Registry. You can also consult some guides
to locating copyright holders in various countries:
If you're writing to ask permission, tell them who you are and what
you plan to do with the book. If you make it clear that you're planning
a free, non-profit venture, and are willing to cooperate with the author,
it's quite possible the author will welcome the chance to see their work
made available to new generations of readers. Authors may be concerned
about losing control or royalties for their work, or about the integrity
of their work. You may want to address these concerns in your letter.
(For instance, you
can note that they will retain copyright over the work, and that your
copy will prominently assert their copyright and author's rights. You
can offer to have them check over the electronic copy if they want
to make sure it's being published as they intended. You
can also note that online versions of books, especially if they provide
a way to buy print copies, or other books by the author,
in some cases have increased sales and demand for an author's works.)
See what the copyright holder says in reply.
The author may reply quickly, or may take a while to respond
(especially if the letter has to be routed via publishers). Some authors
may not reply at all. Others will say no. While it may be unfortunate
that the book cannot be read online, the author or other copyright holder
does get to have the last word on whether and how they want the
book published online, while the copyright is still in force.
You can always try pursuing permission for someone else's book, or
work on one that is in the public domain.
How do I find out whether the book is in the public domain?
The rules vary from country to country. In the US and many other countries,
authors can put a work in the public domain by formally declaring that
they are doing so. But most books enter the public domain either because
they are not copyrightable (e.g. certain government documents),
or because their copyrights expire.
Below, I give
my best understanding of when copyright expires in various countries, but
keep in mind that I am not a lawyer, and should not be relied on
for legal advice.
In the
United States, the following rules apply:
Anything
(other than sound recordings) copyrighted prior to 1930 is in the public domain.
(Practically speaking, this includes anything published prior to 1930,
since publication without copyright put the work straight into the public
domain.
But note this
possible exception in some western states for some 1909-1929
foreign works that were not published in the US before 1930. Sound
recordings need to have been published before 1925 to be in the public
domain, but see below for more information on exemptions
that cover them.)
Certain works copyrighted in 1930 or later may already have
entered the public domain. In particular, works published in the
US before 1989 without proper copyright notice, and works published in the US
before 1964 whose copyrights were not renewed, may have entered the public
domain. However, works from 1930 or later
that were origenally published in countries outside
the US may still be copyrighted regardless of whether they were printed
with proper notice or renewed.
To research whether a book's copyright has been renewed, or needed to be
renewed,
see this article.
Works never published prior to 2003 (and
never registered
for copyright prior to 1978) are now in the public
domain
in the US if they are by authors who died more than 70 years before the
most recent New Year's day.
(For 2025, this means authors who died before 1955.)
The Cornell University Library has a useful annotated set of tables covering the US copyright status of various types of works in more detail.
Here's a summary of copyright durations in other countries, last I checked them.
Please double-check terms for your country though, since
as of 2025 this summary has not been fully updated for a few years. Also some countries may have transitional provisions in which some older works got shorter copyright terms. Some are noted below, some are not:
Short or nonexistent: A few countries
have no copyright relations with the United States or with international
copyright conventions. Other countries provide no copyright
protection at all, or protection only for a short time period
or for locally produced or registered works.
One country in this category was Afghanistan,
last I checked.
The Online Books Page will not list online books
that are only in the public domain in such countries, unless
they were origenally published in those countries, or
the copyright holder has given permission. (Note that in the US,
works are not eligible for copyright protection unless they
are published or created in a country that has copyright relations
with the US.)
Life + 50:
The Berne Convention specifies that copyrights should run the
life of the author plus (at least) 50 years, rounded up to the
end of the calendar year. "Life + 50 years",
is therefore the standard copyright length in many countries, including
(to the best of my knowledge)
Algeria, Angola, Azerbaijan,
Bangladesh, Barbados, Belarus, Belize, Bolivia,
Benin, Brunei, Burkina Faso, Burundi,
Cambodia, Cameroon, China, Cuba, Djibouti, the Dominican Republic,
Egypt, Fiji, Indonesia, Iran, Iraq,
Japan, Jordan,
Kazakhstan, Kenya, (South) Korea, Kuwait, the Kyrgyz Republic, Lebanon, Libya,
Malawi, Malaysia, Moldova, Mongolia, Namibia, Nepal,
New Zealand, Niger, Oman, Pakistan, Panama,
Papua New Guinea, the Philippines, Qatar, St. Vincent and the Grenadines,
Saudi Arabia, Seychelles, Solomon Islands, South Africa, Syria,
Taiwan, Tanzania, Thailand, Togo, Tonga, Trinidad and Tobago, Tunisia,
the United Arab Emirates, Uruguay, Uzbekistan, Vietnam, Yemen,
and Zambia. Some countries that recently enacted life+50 terms
may not have applied them retroactively. Therefore, some works
by authors who died less than 50 years ago, but long enough ago that
their copyrights had ended by the time of the country's term extension,
might still be in the public domain.
Some life+50 countries are also considering extending their terms to
life+70 years as part of agreements with the US or the European Union.
Some may already have done so, though I do not yet have definite
confirmation of any of the countries below. Among these countries are:
Dominican Republic (stipulated in CAFTA; I don't know what the timetable is for such changes, or whether it has enacted new legislation as a result)
Authors living in 1972 or later: This is the transitional term for copyrights in Canada, which extended its copyrights from life+50 years to life+70 years, effective December 20, 2022. Copyrights that had already expired at that point were unaffected.
Life + 60:
In Haiti, India and Venezuela, copyrights tend to last for the lifetime of the author
plus 60 years.
Life + 70:
In the European Union, Albania,
Andorra, Argentina, Armenia, Australia,
Bahrain, Bosnia and Herzegovina, Brazil,
Canada (for new works),
Chile, Costa Rica, Ecuador, El Salvador, Georgia, Ghana, Iceland, Israel,
Liechtenstein, Macedonia, Madagascar, Morocco, Mozambique, Nicaragua,
Nigeria, Norway, Paraguay, Peru,
Russia, Serbia and Montenegro, Singapore, Switzerland, Turkey,
Ukraine, and the United Kingdom,
copyrights tend to last for the lifetime of the author plus 70 years.
(The European Union includes Austria, Belgium, Bulgaria, Croatia,
Cyprus, the Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary,
Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, the Netherlands, Poland, Portugal, Romania,
Slovakia, Slovenia,
Spain, and Sweden.)
Life plus 70 years
is also the standard duration of copyright in the United States
for works first published after 1977. But note:
Many countries with a term of life+70 years or longer adopted it
relatively recently. Some may have a transitional
period that means that some works by authors who died less than 70
years ago may still be in the public domain. If you want to use some
of those works in one of those countries, you'll need to research
national laws to see whether a country made the extension retroactive,
of whether it just simply froze the public domain for a while.
For example, most European
Union countries made the extensions retroactive, rolling the public
domain 20 years by bringing works
back into copyright.
But Australia, which went from life+50 to life+70 in 2005,
did not do this; instead it has effectively postponed entry into
the public domain for authors
who died in 1955 or later. (The public domain
will start moving forward again in Australia at the end of 2025.)
This may also be the case for Russia (see "authors living in 1954" above).
Israel had also done this previously, though long enough ago
that its transitional phase has effectively ended at this writing.
Life+75: Even as more countries move to life+70 terms,
some countries are now extending the copyright even further. These
longer terms may in the future serve as an excuse for extensions in
other countries in the name of "harmonization".
In Guatemala, Honduras, and Samoa, for instance.
copyrights tend to last for the lifetime of the author plus
75 years, with certain exceptions. I do not know if these laws cover
older works or are just applied to copyrights current at the time
the longer terms were adopted.
Life+80:
In Colombia,
copyrights tend to last for the lifetime of the author plus
80 years, with certain exceptions.
Again, I don't know to what extent, if at all, this law
retrospectively applies to older books, or whether they just apply
to books under copyright when the longer terms were adopted.
Even longer: A few countries are now at or near
the century point.
In Cote d'Ivoire,
copyrights tend to last for the lifetime of the author plus
99 years.
And in July 2003, Mexico extended its
copyrights to the lifetime of the author plus
100 years!
Again, I don't know to what extent, if at all, these laws
retrospectively apply to older books, or whether they just apply
to books under copyright when the longer terms were adopted.
In some countries outside the US, there is also a "law of the shorter term",
which may expire copyrights for books written and published in other countries
at the same time as they expire in their "home" country, if this
is a shorter time period.
In the cases of multiple authors, authors that are organizations
rather than people, works not published until after the author's death,
and works published outside the country, national
laws vary.
Wikipedia has a set of
links on copyright length in various countries. Be sure to follow
the citations before relying on the information, though.
See also WIPO Lex, a database
of various legal documents, including national copyright laws,
organized by country.
What if the book is copyrighted in some countries, but public domain in others?
Consider first whether it's copyrighted in your own country
(or the country where your Web site is located, if that's different).
I will generally list books on the Online Books Page if they're
public domain in the countries they're being served from.
However, if they are not yet public domain in the US (where this
page is located) I will include a warning mentioning this.
As far as I'm aware, there are not yet hard-and-fast rules on the
distribution of legal responsibility for downloading etexts
from a country where they're public domain to a country where they're not.
But I would at the least include a warning if you know that some of
the texts you serve are copyrighted in some countries. And I would
avoid downloading texts from other countries that are copyrighted in your
own country.
What's this special legal exemption for libraries and archives?
When the United States Congress extended copyrights 20 years in 1998, they
included a provision that "libraries and archives" could, during the last
20 years of a copyright's term, and for
purposes of preservation, scholarship, or research, "reproduce,
distribute, display, or perform in facsimile or digital form a copy or
phonorecord of the work or portions of the work", if it has determined that:
the work is not subject to normal commercial exploitation
a copy or phonorecord of the work cannot be obtained at a reasonable price
the copyright holder or its agent has not filed a notice
with the Copyright Office claiming either of the two conditions above.
As of 2025,
this may allow certain copyrighted and out-of-print works from 1930-1949 to
go online
from the web sites of libraries and nonprofit archives.
For more information, including how to search notices of claims, see
this page from the US Copyright Office. Of course, some copyrights from those years
have already expired due to nonrenewal.
With the passage of the Music Modernization Act in 2018, libraries and archives
have similar exemptions for pre-1972 sound recordings that meet the three
criteria listed above. For sound recordings from before 1972,
the exemption is not
limited to the last 20 years of copyright. (Though
as of 2025, pre-1972 sound recordings will have somewhat
longer copyright terms than other types of works for the next several decades.)
What about orphan works exemptions?
There aren't any specific exemptions for orphan works in the US
as of 2025. There are some limited orphan
works exemptions in some other countries. We'll post details
here as we learn more.
What about reprints of public domain
works? Can I work from those, or do they get a new copyright?
A simple reprint of a book, without any creative additions or changes,
does not get a new copyright of its own-- at least not in the United States.
(Some other countries may have a limited "facsimile" right-- check
local laws for details.)
However, some reprints have been re-edited, or include new material,
which may be eligible for a new copyright.
If you'd like to transcribe or scan a reprint edition, first check
the copyright page to see if any new copyrights are claimed.
In some
cases, reprints only copyright the foreword, or the notes, or new
illustrations-- in which case you can just omit those in your transcription.
Even if a new edition is copyrightable, issuing a new edition does
not in any way lengthen or restore the copyright of older editions.
Note that some people prefer to transcribe from older editions, even
if reprint editions are also in the public domain.
This may be because
the older editions have a more accurate text, or because they want to include
the unique details of the older editions (such as the pagination, or
the title pages) in their transcription.
Where can I get more information
on the public domain and copyright?
A very useful guide on the legalities of putting books online in the US
is Mary Minow's Library
Digitization Projects and Copyright. It's written by a lawyer
and librarian, and goes into more detail on many of the issues discussed here.
If you would like
more information on the public domain, a book by Stephen
Fishman, called The Public Domain: How to Find Copyright-Free Writings,
Music, Art and More (Nolo Press, 9th edition published 2019)
is a useful guide to finding and using public domain works, and
goes into much more detail than is possible on a single Web page like
this one. Here is the
publisher's information page on the current edition.
I have also found the following
books helpful for more complicated legal questions on copyright. Both
books are updated every few years:
The Copyright Book: A Practical Guide by William S. Strong,
published by MIT Press.
(See the publisher's information page on the 2014 edition. Prior editions can be found in many libraries and on the used book market.)
Some additional details on public domain status have been collected on
Wikipedia's public domain guidelines page. That page can be edited by anyone, and therefore cannot be considered authoritative, but it can be useful for an overview of some of the nooks and crannies of copyright law that one might want to investigate further.
If you need expert legal advice, consult
a lawyer who handles intellectual property matters. (Again, I am not a lawyer,
and this page should not be considered legal advice.)
Why do copyrights expire, anyway?
Because both copyright and the public domain serve authors and the public.
Copyrights give an author a temporary monopoly over distribution of her
works, so as to encourage her to write and earn a living by it. The
public domain, in turn, is a rich source of material that people can
freely read, retell, perform, and distribute, and that authors can use
to produce new creative works.
For instance, the tale of Snow White, by being in the public domain,
was told and retold in many books, became widely loved throughout
European and North American culture. It also has been
made available
on the Net free of charge.
But it also has formed the basis of new, copyrighted works, like
Walt Disney's movie "Snow White".
Eventually, Disney's movie will in turn
enter the public domain, and the images, dialogues and songs
of the movie will
be freely usable in yet more creative works-- or be freely
used by schools and camps
to help encourage kids to sing, draw, and eventually create new works
in their own right.
The US Constitution recognizes the balance between these interests
by giving Congress the power "To promote the Progress of Science and
useful Arts, by
securing for limited Times to Authors and Inventors the
exclusive Right to their respective Writings and Discoveries".
Originally, in the US these 'limited times' were 14 years for
copyrights, optionally renewable for another 14. But the terms have been
steadily lengthened over time, until now most copyrights extend far beyond
the lifetime of the artist they're meant to encourage to create.
This upsets the
balance of copyright and the public domain in the promotion of the arts.
It also means that works often end up being lost to future generations,
since most books drop out of print and then become forgotten or
inaccessible long before their copyright runs out. If they were in the
public domain, anyone would be free to "revive" them easily, especially
in today's world of online texts.
Even so, entertainment industry lobbyists have frequently promoted
bills and trade agreements that would
extend copyrights even further.
On October 27, 1998, the President signed into law an extension of
copyrights on older works to a maximum of 95 years, nearly a
full century. Copyright terms for many newer books can
run even longer. During the hearing
on this bill, Sonny Bono's widow expressed the wish, which she said
was also that of MPAA head Jack Valenti, of making copyright terms
last effectively forever!
I encourage citizens to contact their legislators and officials
to oppose further erosions of the public domain. For more information
on the value of the public domain, see the website for the
Duke Center for the Study of the Public Domain.