“A clearly written, no-nonsense guide that is just what I needed.”
– From a review of Excel for Beginners by Opossum on Amazon.com dated December 1, 2017.
If you just want to learn the basics you need to know to use Excel on a daily basis, then start with Excel for Beginners. You can also start with Microsoft Office for Beginners which includes Excel for Beginners but also covers Word and PowerPoint.
If you already know the basics and want to learn about more advanced topics such as pivot tables, charts, conditional formatting, and more then you want Intermediate Excel. For formulas and functions start with 50 Useful Excel Functions and then move on to 50 More Excel Functions.
In addition to the above, there are many more Excel and Microsoft Office titles available by M.L. Humphrey. For a full listing of the Microsoft Office titles by M.L. Humphrey click here. If you shop on Amazon, this link will take you to the M.L. Humphrey author page where you can find all books by M.L. Humphrey.
This site also contains blog posts related to Excel, including the following that may be of interest to you:
A Quick Excel Copy and Paste Trick
How to Count TRUE or FALSE Entries in a Range
A Little Reminder on Backwards Compatibility
Using Excel for an Optimization Problem
How to Split a Cell Diagonally in Excel