First of all, I really enjoyed this book. As a professional furniture maker who is just starting out, I found the ideas and techniques very interesting. Robert Ingham is one of the top living British furniture makers, so to have any insight into his ways is good, but this book takes you step-by-step through his processes for making his furniture, which, I'm sorry to say, is an attitude of openness that is all too often lacking in Britain.
My only quibbles are that the book is written in a very dry fashion (which tells the reader something of Robert's character, perhaps), and I thought was quite poorly laid out. I also would have liked to see some subjects that were only mentioned expanded upon, and some that were expansively laid-out (joints, for example) cut back. The middle section about joints was a case in point - there are many books and videos out there all about joint-cutting, and okay, if you have a unique way of doing them that could add significantly to the pile of literature out there on the subject, go ahead. But please don't repeat what is already available!
So I would have preferred less info. on joints, more on the processes that make Robert's furniture unique - making your own hardware, veneering, routing techniques, philosophy, etc.
In spite of these minor complaints I would still say that this is a necessary book to have on your shelf if you work with wood (either as a hobby or professionally) - because it is a book by such an eminent maker. Not having it would be like not having a Maloof, Krenov or Makepeace book. Aside from which, I think British makers should be encouraged to publish more of their thoughts, ideas and techniques, to add their important voices to the world of furniture.