My son loves the books of the collection "Little Boy." He is interested in anything with wheels and a combination of a character and a vehicle is an idea quite pleasant. In general, the name of the vehicle rhymes with the first name and the text is structured like a small poem. In addition, there are some characters from one story to another. I understand that children cling. For cons, I personally hate this series of books. I find ugly: visibly made computer drawings have no depth, no character. The characters are smooth, are all alike. On the one book to another, the streets have the same names, dogs and cats are all identical (sorry, eye color seems to vary), the police and the stationmaster cap have the same (that is my son who has observed the first), the characters have four fingers (why not five? to look like Mickey?) and stories are all the same ... and the vocabulary is very limited. I have long resisted buying eventually yield: this is perhaps the first thing I do not like and my son likes, but it certainly will not be the last, so get used to right away .