This is an interesting book to learn to write and to count and recognize numbers up to 10 digits to 20. The book is colorful, with lots of pictures and stickers. The only bemole is that it is a bit repetitive, that is to say on each page there is always a line for training to write each number, one thing has color (for example, you have two flowers coloring or 5 fish among several) and then third challenge on each page is sticking missing stickers for 6 sweets, find a sticker with 4 dolls ... At the end there are some pages for numbers from 11 to 20 - like connect the dots coloring or following numbers of codes with corresponding colors. Given the low price and the speed with which children "swallows" this kind of book I recommend to all, without doing much on pages to keep the child interested.