Sam-I-Am tries to convince others that green eggs and ham is a good breakfast. Illustrates the principle that things are not always as they seem.

Advice in rhyme for proceeding in life; weathering fear, loneliness, and confusion; and being in charge of your actions.

"If you ran the zoo, could you outdo young Gerald McGrew? The New Zoo, McGrew Zoo, is unlike any zoo you've ever visited-- unless you've already seen an Obsk, a Chugg, a scraggle-foot Mulligatawny, a Seersucker, a Lunk, an Iota, and a Gherkin"--Page 4 of cover.

In Dr. Seuss' first book for older people, this tale in the familiar Seuss format depicts aging and what life is like for "obsolete children"

A lion, a dog, and a tiger balance apples on their heads.