The book that I'm actually reading is Microsoft Excel 2010 In Depth from Bill Jelen. It's a 
+1,100 pages book that is well written and covers all of the main features of the new Excel 2010 version. For a big book I found it very easy to read because the book is visually attractive, with good and simple examples.The book is divided under 5 main categories:
- Changes in User Interface
- Calculating with Excel
- Business Intelligence
- Visual Presentation of Data
- Sharing
I definitely recommend that you read this book to get to know Excel 2010 in depth because there are so many new things to discover that you will need a big book like this one to discover them all.
