"Practical business advice"
This is great book written by someone with real life experience growing businesses from scratch. It makes a great point of emphasising the importance of sales and revenue, and working on refining your product or service later. It has many points in common with The Lean Start-Up, but I have to say I enjoyed listening to this one much more. This is a great how to manual on pinpointing your business' major focus and how to get it to the next level. Highly recommended.