MARY CADOGAN is a well-known writer, critic and broadcaster with a special interest in Enid Blyton. She is Editor of the monthly magazine Collectors' Digest, and the author of over a dozen books about children's fiction, including biographies of Richmal Crompton and Frank Richards. You're a Brick, Angela! which she co-authored with Patricia Craig, is widely considered as required reading for anyone with an interest in popular girls' fiction.