All scheduling software is difficult to learn for a number of reasons. None have the optimal settings when installed and Layouts, User Preferences and default options need to be adjusted to obtain the best possible performance. Usually the Help files do not connect the user to real life situations and do not explain the practical use of functions. Furthermore, there are many flicks and switches with obscure names that are difficult to understand or decide what they do or which are important. These issues make learning the software very difficult without a comprehensive guide written by an experienced user. Investing in a book written by Paul E Harris will address all these issues and allow you to setup the software properly and understand all the obscure functions letting you become productive more quickly and enhance your career opportunities and salary with a solid understanding of the software. This book is an update of the author's Primavera P6 Version 8 to 21 book and has been written so it may be used with any software industry version. The book is packed with screen shots, constructive tips and contains workshops with solutions at the end of each chapter for the reader to practice the skills taught. It has been written so it may be used with either the Professional Project Management Client version or the Enterprise Project Portfolio Management Optional Client. The book is aimed at: 1. People who wish learn the software but are unable to attend a training course and find the software reference manual hard going. 2. Project management companies who wish to run their own software training courses or provide their employees with an alternative text to the vendor supplied user manual. 3. Training organizations requiring a training manual to run their own training courses.