The value of the book depends on what one expects from it and how someone can use it with very young children. The good result is due to the satisfaction the child feels when they manage to play a complete piece, with the help of course of the adult. Otherwise, they will just hit the notes randomly, it won't make sense, and they will get bored quickly. Familiarization with the notes by pressing the keys with the colors the child sees in the corresponding solfège on the above one page is a very good way of creatively introducing music in an easy way, before the child learns the regular notes in their symbolic form. I got it to copy onto a large cardboard and in large dimensions the colored notes in an improvised solfège for 1-2 well-known songs and then to place small colored stickers with the corresponding colors that exist in the solfège on the keys of our own children's piano, which I bought from Amazon (Caution is needed, because the colors must be the same in the solfège and on the keys). As a product, it is of good quality for its price. So, it is a good gift, whether it is useful or not!