How many books were written and illustrated by Dr. Seuss himself?
45
Q298685
entity
Dr. Seuss
Dr. Seuss
Q622916
Horton Hears a Who!
Q446612
How the Grinch Stole Christmas!
Q2759523
Green Eggs and Ham
Q5898950
Hop on Pop
Q18155677
Dr. Seuss's ABC