These books apply to pretty much any type of product: "The Mom Test" by Rob Fitzpatrick will teach you how to figure out what your customers really want, becau

These books apply to pretty much any type of product: "The Mom Test" by Rob Fitzpatrick will teach you how to figure out what your customers really want, because it is almost certainly not what they are asking for. "How to Make Sense of Any Mess" by Abby Covert. How to organize and present information. "To Sell is Human" by Dan Pink. This is how you should look at sales and marketing. Assuming you are going to be building software: "Seductive Interaction Design" by Stephen P. Anderson. "Planning Extreme Programming" and "Extreme Programming Explained" are must-reads for working with software teams. I've worn both product and engineer hats on my path to being a sort of rentable CTO, and am always happy to help out people that are getting started as a PM -- email is in the profile. Good luck!