My daughter and I love the books from this collection. We have almost all. Every night we read 2 double pages before going to bed I was not sure she clings to it, but eventually he liked it (she is 5 years). The pages are very detailed and are full of information. The illustrations are nice and vibrant. My daughter especially loves the double pages "Let's see ..." that close each chapter. On these pages, we find questions about the chapter we have just read, games, and often the child's opinion is asked on topics previously seen. This collection is a real success and I can only advise.