A few years ago, the books of Harry Potter made reading childrens books as an adult almost an acceptable pastime.

I duly read the books and must admit I really enjoyed them.  It must be quite a hard thing to write for people younger than yourself, how do you know what they want to read?  How scary can you make them, how much detail to put in?

Most would agree that J K Rowling knows the answers to these questions as the Harry Potter stories were widely read around the globe - and by people of all ages.