Authors' Thanks

Various people contributed to this book, from business analysts and developers to sales directors and financial managers. We all know the pain of wrestling with data and the satisfaction of not having to do something again and again or finding the small error which is making your life hell (we've made this book public and free to download to avoid other people facing the same issues).

In particular, we’d like to thank the following people who helped make this resource a reality: Will for his technical instinct; Anna and Jakub for their lovely designs; El for her patient and practical guidance; Robbie and Christian for their knowledgeable comments; Miranda, Darshan and Dalia for their diligent proofreading; Patrick, Bill, and Ben for their valuable suggestions; and Laryssa, who pioneered the launch.

We hope you find it valuable.