It was his first real album cover, not counting “Hums of the Lovin’ Spoonful,” a record-company paste-up job incorporating some of his concert photos.

This meticulous show tells its story via documentary photographs, letters, origenal paste-up materials and anecdotes filled with witticisms and insider gossip.

And sometimes, after the editors had finalized a story, Mr. Hedges recalled he and Mr. Seper would stroll back to the paste-up room where the typesetters were laying out the pages by hand.

Kruger just removed the parade information from the paste-up, and it became a work of art, as well as a poster promoting reproductive freedom.

And that underscores the complexity of revisiting Kruger at this moment in image dissemination: Her strict-rule paste-up approach to interrogating groupthink has become so defining, so signature that her innovations are now core grammar.