"Alfie Gets in First" deals with a 4yo accidentally being on the wrong side of the door to mum, getting upset, how the adults come up with various ways to get into the house and how Alfie solves the problem himself.
"Dogger" is about a favourite toy getting lost, Dave is very upset, but then spots Dogger for sale at the school fete and his older sister solves the problem for him and he gets Dogger back in the end.
They are very good for dealing with normal toddler based fears. It also means that as the problem is dealt with by children in the book, it is very empowering for them. I got these CD's with the books, as it was always good to show the happy faces at the end when my DC were tiny.