From a quality point of view, this series of books is excellent with laminated pages and solid yet my son is far from a tender with its business. The quality is very good explanations, the designs are simple but well illustrate the text. For the specific case of "The veterinarian" is explains why we go to the vet, consultation, vaccines, operations, the electronic chip. We also see the role of campaign veterinarian or veterinarian in a zoo.
It's very rewarding for children from 3 years and much more!