What is horrible history book?

Horrible Histories is a series of history books written by Terry Deary. The books are designed to provide children with a humorous and entertaining look at history, with a focus on the gruesome and bizarre aspects of the past. The first book in the series was published in 1993 and since then, over 100 books have been published, covering a range of historical periods and topics. The books are known for their lively writing style and humorous illustrations, which appeal to children of all ages. Along with the books, the Horrible Histories brand has expanded to include a popular television show, stage shows, board games, and other merchandise, making it one of the most popular and successful educational brands for children.