I should say up front that I have been a huge Bruce Lee fan since his days as Kato, on the "Green Hornet" TV show, so none of my reviews concerning him will be impartial.
Many heirs and "pretenders" have followed in Bruce's footsteps; some I do not agree with and who, it seems to me, are merely capitalizing on his name and the name he gave to his approach to Martial Arts, Jeet Kune Do ("The Way of the Intercepting Fist"). So there, I spoke my piece on this matter and from now on I will try to limit my opinions to the individual books being reviewed.
Scores of books have been written about Bruce Lee and Jeet Kune Do (JKD). I believe this volume (originally published as 4 separate paperbacks) is the best place to start, since it contains photos of Bruce demonstrating his art, with two of his best friends and most devoted students, Dan Inosanto and Ted Wong, posing as "opponents".
I should add that that these 4 volumes were not actually written by Bruce Lee, but by M. Uyehara, the founder of "Black Belt" magazine. They were published after Bruce's untimely death in 1973. But, in my opinion, this is a minor detail.
This beautiful, hefty hardcover volume contains the complete text of the 4 original paperbacks... Self Defense Techniques (which, in my opinion, should be Volume 4, not 1), Basic Training, Skill in Techniques and Advanced Techniques. This edition also features an extra chapter, by Ted Wong, covering the "5 Ways of Attack", as well as a new Introduction by Bruce's daughter, Shannon.
The demonstration photos in this book were shot in 1966, so they offer a glimpse into Bruce's thinking at the time. Notice also that "Jeet Kune Do" is not in the title. Bruce began his martial arts career, in China, studying Wing Chun Kung Fu, under the tutelage of famous master Yip Man. When Bruce emigrated to America, he was influenced by other combat arts. Western Boxing and Fencing were strong influences on his later approach to fighting and they are both reflected in these books. The stances, footwork and strikes bear a strong resemblance to these arts. The kicks are a blend of more practical low-line attacks, combined with some higher and riskier kicks.
For anyone interested in following the progression of Bruce Lee's views on Martial Arts, I recommend reading this one first, followed by the new edition of "The Tao of Jeet Kune Do". I think these 2 books offer a comprehensive overview of Bruce's constantly evolving approach to unarmed combat. I like to think of "Fighting Method" as the practical, "text-book" and "The Tao" as its "theoretical" companion.