It is enough to compare the price of a single book and this "compilation", and we do not hesitate a long time! The format is a little smaller than the individual books, but good solid strong cardboard. The only regret I have is that the different seasons are not marked by a tab system or slip, because you flick "haphazardly chance" to go in the fall or winter ... Otherwise it remains a very interesting book that shows scenes of the rich double page in which, over and through different sets, one can follow the characters from the beginning, have fun finding them. The scenes are full of small details that make you never tire of watching them. Excellent product, 3 years ... ??? even at 10 years old my children still take pleasure to leaf through with their little brother.