Startup lessons
How To Get Media Coverage For Your Startup: A Complete Guide - by Leo Widrich, co-founder of Buffer: http://onstartups.com/tabid/3339/bid/80121/How-To-Get-Media-Coverage-For-Your-Startup-A-Complete-Guide.aspx
About the importance of creating prototypes of your idea and proof that it works (or realize it doesn’t): http://www.fastcodesign.com/1669246/a-small-businessmans-guide-to-innovating-like-the-pros