|summary=A lexicon of the world behind the characters, this nicely produced hardback will delight Horrid Henry's and Moody Margaret's hard-core fans, while many a parent will snort in delight at the anarchic spirit of naughtiness that Henry embodies (while sending thanks for not actually having to cope with a Henry of their own). Obviously, no smelly-toady-goody-two-shoes are allowed to put their scrubbed-clean hands on this book.
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Horrid Henry's fans will like [[Horrid Henry Rocks by Francesca Simon and Tony Ross|Horrid Henry Rocks]] and these thank-you letters get the treatment they deserve in [[Horrid Henry's Thank You Letter by Francesca Simon and Tony Ross|Horrid Henry's Thank You Letter]]. The franchise has also [[A Horrid Factbook: Horrid Henry's Bodies by Francesca Simon and Tony Ross|non-fiction]]. [[George's Marvellous Medicine by Roald Dahl]] appeals to similar audience, and we even have a whole list of [[Top Ten Books For Children Who Think That Farts Are Funny]].