An introduction to Venn diagrams in their simplest form--circles which sort things into categories.
"synopsis" may belong to another edition of this title.
Book Description Thomas Y. Crowell Company, New York, New York, 1972. Hardcover. Book Condition: Good. Dust Jacket Condition: Good. Pyk, Jan (illustrator). 33 page book is in good condition with edgewear, rubbed spine ends, and usual library markings. DJ is in good condition with edgewear, library label on spine, and protected by a scuffed clear mylar cover, with a tear in the front, secured to the book with glue. Bookseller Inventory # 027730
Book Description Thomas Y. Crowell, 1972. Hardcover. Book Condition: Used: Good. Bookseller Inventory # SONG069085997X