Here are a couple of my all time favorite business books<p><a href="https://www.amazon.com/Crossing-Chasm-3rd-Disruptive-Mainstream/dp/0062292986/" rel="nofollow">https://www.amazon.com/Crossing-Chasm-3rd-Disruptive-Mainstr...</a>
<a href="https://predictablerevenue.com/" rel="nofollow">https://predictablerevenue.com/</a>
<a href="https://www.amazon.com/Challenger-Sale-Control-Customer-Conversation/dp/1591844355" rel="nofollow">https://www.amazon.com/Challenger-Sale-Control-Customer-Conv...</a>
<a href="https://www.amazon.com/The-Lean-Startup-Eric-Ries-audiobook/dp/B005MM7HY8" rel="nofollow">https://www.amazon.com/The-Lean-Startup-Eric-Ries-audiobook/...</a>
For practice you can buy several fire extinguishers at a hardware store and then walk in your neighborhood trying to convince people to buy the extinguishers from you.<p>Such a field experience is very valuable.