Best of IPT is a Collector's Issue that has archived the best articles from previous issues. It was published in March 2011 and runs over 500 pages.

The issue refers to several articles of special interests to act as a reference tool and guide. The wide subjects topics of this issue includes — water management, green plumbing, plumbing design/execution, plumbing education, codes & standards and health aspects of plumbing. The book serves as a reference tool and is treasured by plumbing professionals.