This book looks great for those who want the content therein. I expected a little something after seeing the author of clips on youtube. I thought there would be more projects to build well defined with lists of components to purchase, as some American books I bought for about half the price. Besides, I have all the information it offers here the other books that are worth between 20 and 30 euro, so for me, paying 40 euros in these conditions, it was not justified. I sent against refund.
I do not criticize the book which is certainly fine for those who want what's there, but I was expecting something else and a lot more if I have to pay 40 euros. In addition, for 40 euros, color photos would not be too much.