The Usborne Beginners series of fact books are great for primary school, particularly 6-9 years. The books are clear, have great pictures and information and lots of good titles on many topics. With flaps and moving parts this explains what happens to food from the time you put it in your mouth until….well the title explains it. Clear, funny and fascinating. Gruesome and fun. There are Horrible Science books and Horrible Geography books too, giving a huge number of books to choose from. A lot of text so really best from age 9 upwards.