This book unfortunately leaves a lot to be desired in order to leave up to its proclaimed sub-title as "the only Excel book you'll ever need". For an Excel book, this one has a few key shortcomings:

- no data to practice the examples with: any serious Excel book should make available to the reader the data that the examples in the book are based on - many readers would be interested in actually practicing the examples

- way too many errors, even for a first edition - one of the most annoying type of errors are the ones that point to figures that don't exist or the wrong figures altogether

- too many pages in a row filled with endless lists of functions or other attributes - instead of focusing on the most popular ones in the narrative and provide the whole list in an appendix



This book has some positives as well, such as a comprehensive treatment of topics in general and perhaps the most comprehensive treatment of Excel functions I have come across. However, these positive aspects are far outweighed by the negative aspects I mentioned above.