As the world's top Excel expert, nobody knows more about Excel than John Walkenbach. And 101 Excel 2013 Tips, Tricks and Timesavers is one of the most classic works for Excel, which can help you easily work out report forms, become good at data analysis, fast beautify the Excel charts, etc., almost in one hour.

Windows 8 Secrets is an ultimate insider’s guide to Microsoft Windows 8/Windows 8.1, it will teach you all the insider tips, tricks, treats, secrets, valuable insights and unbeatable advice revealed on Windows 8/8.1.