The small practical size with large photos was a good idea, but the texts and explanations are disappointing.
As a beginner, I wanted a real book, simple, to make some steps at home. But the texts resemble copied / pasted school electricity theory. I did not need to buy a book for that. This is the kind of text everything found everywhere.
In addition he explores all sorts of other devices including the beginner will have no use. If we made a practical and brief book about cooking vegetables, why discuss cooking kebabs?
If you are experienced, this book will not teach you anything, if you are a beginner, it will be too confusing, using empty phrases of meaning and too complex.
There are no didactic work by the author. It's been 15 years that I had not bought a paper book. Usually I find information on the Internet but this time I wanted to find the info better organized, more "clean". Finally, read a few pages on the Internet have taught me more and better. In short, it is this book that will make me want to read paper books.