I reread the classic Common Stocks and Uncommon Profits by Philip A. Fisher. The original edition was published in 1958 and is still as relevant today. The book is ranked up there among the best investment book of all-time. It’s worth picking up once in a while to reread certain sections. I have the updated edition, which includes the perspectives of the author’s son Ken Fisher, a respected investment guru in his own right. You can find some of Ken’s writing at Forbes and books at Amazon.
I won’t go into details about the book since there’s plenty of resources available online. However I will provide this golden nugget of knowledge, which I think summarizes the book: “What are you doing that your competitions aren’t doing yet?” This question is a home-run to me. It’s a powerful question. The company or individual that’s always asking itself that question never becomes complacent.