This 2 hour talk is basically the essential primer/guide to product management. I have never seen a single deck/resource be nearly as comprehensive. This is so incredibly essential, I think anyone who is even remotely connected to building products should sit down and at least flip through the slides, if not watch the whole thing.
It took me 10 years of working on product of all kinds (web, desktop, mobile, consumer, enterprise) in all kinds of roles (engineer, designer, PM) to come to understand the concepts explained in this deck in 2 hours.
This is my favorite slide out of this whole thing. There's a lot more to designing products than the visual aspect. There's much more, and it's all connected.
Dave McClure's fbFund is bringing together some seriously valuable startup knowhow and resources.