April Diary
Hedi Kyle, 1979
Paper, binder's board, ink, watercolor.

This is the original work of the form that has become known as the "Flag Book." Among the most influential artists in the world of contemporary bookmaking, Hedi Kyle has developed new book structures and forms which have been adopted by publishers and printers of fine art books as well as by individual artists creating unique or multiple bookworks. 

You can see more about book structures at at colophon.com.