DOUBEK, Jan. Co Je Uvnitr. Illustrated by Teodor Rotrekl. Square 8vo., original illustrated boards. With 12 foldout plates. Prague: Statni Nakaladatelstvi Detske Knihy, 1968.

A charming Czech children's book with somewhat surreal illustrations depicting such diverse objects as a watch, a safe, a motorcar, a train, a plane and a rocket. An interesting example of Post avant-garde Czech book design.