Life most people, I kind of learned Excel as I went along - no formal training. The book plugs the gaps that training from day 1 would have given - back to basics. You'll learn new time-saving techniques and new ways of doing things from this book. Highly recommended.
The content and style of delivery in this book is excellent. The use of real world examples also helps to put purpose and function of pivot tables into perspective. I was previously an Excel user for over five years but never really used Pivots due to not taking the time to understand there usefulness and function. After reading Bill Jelens book I can fully appreciate the usefulness of Pivots in analysing large data sets. I have realised that I have been analysing data both the hard way and the slow way. I am certainly more productive at work after reading this book and can turn large data sets into useful summaries and information for my manager in much shorter timescales than previously. The thought of using Excel without Pivots is no longer an option. Bill covers some really useful functions related to Pivots such as importing data from external sources and using this as a pivot data source. My only criticism of the book is that you really have to struggle to see the example screenshoots used in the book.
I am an experienced user of Excel pivot tables, but found many useful tips and techniques within this book. It is concise and clear and I think would be a very useful manual for someone new to pivot tables.
The sections on VBA were probably the weakest, but this may reflect my lack of expertise in VBA programming.