This is a classic children's book filled with all types of poetry, from rhyming to just short ones on various topics. I read this as a child and continue to read it to my kids and those I teach. Shel has a talent that is very similar to Dr. Suess (Suess filled void in children's literature that lacked fun and rhyming) in that it filled a much needed void during a time when children's literature lacked meaningful and relevant poetry. Sure many of the poems are weird or one might consider grouse but it shows children that doing what you love, despite it being different from "normal" writing, can fulfill you and give you a career that you actually enjoy. Heck the guy wrote "A Boy Named Sue" and "The Cover of the Rolling Stone" to just name a couple that you'd know.