"The Pipe Fitters Blue Book" is a complete reference guide including necessary information for instructors, students and workers in the field and in the office. This book is clearly written, well illustrated and easy to understand.
It fits in your pocket and has a weather resistant cover.
That is why it is the most widely used book in the industry today!
W.V. “Duffy” Graves retired after 25 years from Shell Chemical as a pipe fitter foreman. After retiring, he taught pipe fitting at Lee College in Baytown, Texas. During his tenure at Lee College, Duffy realized the need for a handy, easy-to-use reference manual with a sturdy cover that could be practically utilized in the field.
These books have become the best selling pipe fitting handbooks in the United States and are sold world-wide.