This is a very nice book, and if you approach it as a motivation to get out there may well do the trick, (note the word "inspirational" in the title!). As a serious guide it is not so helpful, as it is hardly of a size or dimensions to take off walking with you.
However, it is full of lovely pictures and interesting / useful advice - how much of it you will actually use is questionable, but that does not detract from its interest. If you like Ray Mears, or anything similar, I am sure you will like this book.