Pretty basic, but it presents the information in a much clearer fashion—both in terms of layout and language—than most of the Excel 2016 books available from Kindle Unlimited. Also, Brown addresses some of the aspects of working with Excel that many authors (who are focused more on HOW-to than WHY-to and WHEN-to) tend to ignore; as with computer programming, best practices for designing a spreadsheet involve thinking about your needs and use cases BEFORE you start working.