You’ve met the World’s Worst Children – now prepare yourselves for something much, much worse in THE WORLD'S WORST TEACHERS! “There have been three volumes of The World’s Worst Children. Now it is time for the kids to get their revenge, with The World’s Worst Teachers. I think this is my funniest book yet, and I hope will be enjoyed by even the most reluctant reader.” David Walliams. Think your teachers are bad? Wait till you meet this line-up. These ten tales of the world’s most splendidly sinister teachers will have you running for the school gates.