A lot of children’s entertainment these days seems to consist of lazily repackaged pop-culture iconography, conveniently sanitized by corporations for parents to force upon their helpless kids. This is especially true in the world of children’s books, as evidenced by the Office-themed book set in “Dunder Mifflin Elementary.” Because what child wouldn’t want a bedtime story rehashing their parents’ favorite primetime network sitcom?

Weirdest of all, remember those “Little Golden Books”? Well now, in addition to fairy tales and Disney stories, they also include abbreviated biographies of Bruce Springsteen and an alphabet lessons starring H.R. Giger’s phallic nightmare beast: A Is for Alien. (And “C” is for “Child Therapy.”)

Stranger still, there’s a Little Golden Book starring the Seinfeld gang — or rather, the dead-eyed Funko Pop versions of the Seinfeld gang.

Seinfeld: Who Are These People? finds Jerry introducing readers to his friends, such as George,...