You suck at Excel, with Joel Spolsky.

This private presentation to an audience of engineers is now available on Youtube and its great. Joel was a program manager on the Excel team in the early ‘90s. “The way you are using Excel causes errors, creates incomprehensible spaghetti spreadsheets, and makes me want to stab out my own eyes. Enough of the =VLOOKUPs with the C3:$F$38. You don’t even know what that means.” ~ learn more