Definitely all three of these... Plus recently "Made to Stick" has really changed how I think about ideas and sharing them with others. http://www.amazon.com/M

Definitely all three of these... Plus recently "Made to Stick" has really changed how I think about ideas and sharing them with others. http://www.amazon.com/Made-Stick-Ideas-Survive-Others/dp/1400064287/ref=sr_1_1?s=books&ie=UTF8&qid=1282795235&sr=1-1 http://www.amazon.com/Made-Stick-Ideas-Survive-Others/dp/140...