I have been doing a lot of traveling by car recently, and started to listen to audio books to utilize my time better. I have been listening to the audiobook of Buffettology: The Previously Unexplained Techniques That Have Made Warren Buffett The Worlds by Mary Buffett and David Clark. This book, which originally came out in 1999, is a great read for beginning investors and many intermediate investors.
The book covers how Warren Buffett researches and chooses stocks, and how he was originally able to build Berkshire Hathaway (BRK-A) (BRK-B) into a top investment. The books shows the types of companies that Buffett likes and doesn't like, giving specific examples.
It describes how he looks for companies with competitive advantages and advantages that are durable, in other words, maintaining the competitive advantages without spending significant amounts of money. The authors go into detail about finding companies with consistent products, that provide higher earnings, which can be used to expand the companies' market.
Get yourself, or a friend, or relative a gift of Buffettology: The Previously Unexplained Techniques That Have Made Warren Buffett The Worlds.