Are You My Mother?

US-only true first: Beginner Books, New York, 1960, distributed by Random House — Eastman's second Beginner Book after Sam and the Firefly (1958). No UK or foreign-language edition precedes it; later British Beginner Books issues are separate editions, not firsts. Caution: Random House later printed 'First Printing' on the copyright pages of reprints, so a printing statement alone does not make a first — the jacket configuration and imprint wording govern.