When Mr. Messy throws a dinner party, he prepares a special menu for his friends. On board pages.

Mr. Rude is the rudest man you'll ever meet. When Mr. Happy notices how awful Mr. Rude is being, he sets out to teach him a lesson in etiquette.

The bestselling children's books series for over 50 years! Mr Messy was the messiest person you'd ever met in your whole life. He looked messy because he was me

They're back! Rediscover the zaniest characters you've ever met in this best-selling series which has sold millions worldwide. Bright and charming, with easily

A concise, modern textbook on group theory written especially for physicists Although group theory is a mathematical subject, it is indispensable to many areas