This is the best book written on Excel (I bought two other's before I found this one). This is a one-stop shop for an Excel reference book. Easily scannable, easy to read. I especially love Patrick's Quick Tips -- which provide bite size "how-to's".
Awesome Excel Tutorial / Training / Help
Rating: 5/5
This is an extremely good reference on Excel. Clear and concise step-by-step. Well worth the investment