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From Horn Book

January 1, 2014
This edition of book one in the series now features watercolor blues, greens, yellows, purples, and reds. For the most part, the color doesn't compete for attention with the text. That said, hardly an inch of blank space remains, especially in the comics that George and Harold draw. The effect is now more splashy Sunday comics than sketchy drawn-by-kids serial.

(Copyright 2014 by The Horn Book, Incorporated, Boston. All rights reserved.)

From School Library Journal

February 1, 2000
Gr 2-5-Pilkey packs an amazing amount of humor into what could have been a one-gag novel. Besides turning their principal into a silly superhero, George and Harold play tricks on just about everyone. They pepper pom-poms, put bubble bath in tubas, and fill a football with helium. Pilkey's illustrations are half the fun, and that magical moment when the hypnotized Principal Krupp dons his Captain Underpants uniform and sings "Tra-La-Laaaaaaaa" is priceless. Krupp is a worthy successor to Lamar J. Spurgle, the nemesis of "the Cut-Ups" in James Marshall's great picture books. The "kneel here" sign in front of his desk says it all. Kid Appeal Award: Superheroes are always fascinating to kids. And children of a certain age will laugh at anything that has to do with underpants. Combining the two was a stroke of comic genius.

Copyright 2000 School Library Journal, LLC Used with permission.

From Publisher's Weekly

September 1, 1997
Few things command disrespect like the sight of a man wearing whitie-tighties. However, the bald and barefoot Captain Underpants happens to be a superhero. As one character notes, "Most superheroes look like they're flying around in their underwear....Well, this guy actually is flying around in his underwear!" The Captain, defender of "Truth, Justice, and all that is Pre-Shrunk and Cottony," is the comic-book invention of two troublemaking fourth-graders, George and Harold. He comes to life after the boys use a mail-order device to hypnotize their diabolical school principal, who sheds his outergarments and battles crime in only a cape and Y-fronts. As his creators try to snap him out of the trance, Captain Underpants threatens bank robbers with "Wedgie Power" and foils the villainous Dr. Diaper (" `You know,' said George, `up until now this story was almost believable' "). Pilkey (Dog Breath) uses a sitcom-like formula to set up the rivalry between the boys and the principal, and to strip the authority figure of dignity. After a tepid exposition, he falls back on the notion that undies and mild bathroom humor are funny in themselves-- and, given his intended audience, he's probably right. Line drawings of the slapstick action appear on every page, and "Flip-O-Rama" climactic sequences create an agreeably corny "motion-picture" effect. But the lowbrow jokes (the Captain uses an elastic waistband to apprehend an evildoer) chiefly constitute this tale's harmless, non-gross appeal. Ages 8-12.