5/5 Perfect Beginner Guide to the Discipline
  by Scott
Brilliant guidebook for those interested in starting to train. Explains perfectly the history, various movements, and philosophy of parkour.It even throws in fitness training suggestions as well. Incorporating great photography and surprisingly helpful tutorials, this is the definitive guidebook for fledgling traceurs.

5/5 The Parkour and Freerunning Handbook by Dan Edwardes, Parkour Generations
  by S. Webb (Manhattan, KS)
My son bought this book and has really enjoyed it. Great descriptions and lots of pictures to show the proper technique.

3/5 The Parkour and Freerunning Handbook
  by Kip Whinkel (Kingdom, of New England)
Well written and easily followed. Pictorial examples in the second half of the book perfectly accompany the step by step examples in the first half.

5/5 Beginner's guide to Parkour
  by Michael A. Duvernois (Minneapolis, MN United States)
This is from the Parkour Generations folks who have a number of videos and educational programs online. They've taught everyone from school children to Hollywood stuntmen and stuntwomen. The book is thin, but has good photographs and a solid step-by-step technique building program. The core stance on the book is practice, practice, and practice with an eye towards grace and silent, smooth execution of technique. This could be a good motivational book for someone new to Parkour or freerunning, but it's hard to imagine pushing too far into this without good instructors as well.

5/5 Cant wait to read it!!
  by M. Jones (usa)
I got this book and flipped through it a bit, but have not yet put it to use.
I then let a friend who is interested in parkour barrow it. I think I'll have to buy another copy!

This book is a very good how-to guide for parkour. If that is what you are looking for BUY IT!!