My 5 year old son loves this book despite that he cant do half of the puzzles - they would be better suited for an older child. But he does love looking at all the characters (old and new) and the comic book scenes. Bought from Argos very cheap too.
I have found Ben 10 seems to suit 4 and under, by the time they are 5 and over they are into other action figures. This annual was a hit with my 4 year old grandson. No trouble with delivery came early so very pleased.