If you are looking for a totally revised and updated edition of this book that was originally published in 1997, I am afraid that you will be disappointed with the 2006 edition. This is basically the same book as the 1997 edition with one fairly weak chapter added in an attempt to bring the book up-to-date, or probably more accurately, to sell more books. A great example is seen on pages 6 and 7 in a table entitled "A Modern History of the New Triumphs." The first date shown is 1984 and the most current date is October 1996. Nothing for the period 1997-2006. Hardly an update. Chapter 9 entitled "Transformation Complete" does make a half-hearted attempt to discuss the new T2 assembly plant, but, if you are a Bonneville fan, you will be sorely disappointed. There is only one poorly-written paragraph on Triumph's top-selling Bonneville T-100. And as for pictures -- Not here. You will only find two very small b&w pictures of the T-100, one 3/4 page b&w picture of a Thruxton Bonneville and one small b&w picture of a Scrambler.
If you are interested in Bonnevilles and, particularly, the new Hinkley Bonnevilles, check out Steve Wilson's book entitled Bonneville - Triumph T120/T140. The final chapter entitled "New Millennium Bonneville", while only three pages long, is very good and has one full-color, full-page picture and two smaller full-color pictures of the T-100. All-in-all a very nice book.
The bottom line? "Triumph Motorcycles - Their Renaissance and the Hinkley Factory" is no more than a warmed up 10 year old book. Buy it if that is what you are looking for, but personally, I was very disappointed.