This is the third version of this book that I have bought. I own XL 2000, XL 2007 and now this one. It’s worth updating as new features are added in each Excel version.
I highly recommend this book if you have been using macros for a while and want to take them to another level. It is not a step by step instruction guide you need to read and absorb.
It demonstrates and explains many best-practice techniques but it can take time to digest the ideas. It has a companion website with the examples from the book.
(John Walkenbach is my favorite Excel author and I was honoured that he wrote a recommendation that appears on the back of my own book)