Walker's Manual of Unlisted Stocks

This is not a book you read. It is a directory, company after company, of American businesses whose shares traded but which were too small or too strange to be listed anywhere you could look them up. Each one gets its financials and not much else.

Before the internet indexed everything, this book was the only practical way to find these companies at all. You bought it, you sat with it, and you went through hundreds of boring entries looking for the handful that were absurdly cheap because literally nobody else had bothered to open the page.

The edge was never analytical. Nothing in here requires a clever model. The edge was that the information was physically difficult to get, so the only people who had it were the people willing to do something tedious for a long time.

That is still true and it is most of what I do. The deals I get are not the ones with a broker and a data room. They are the ones where somebody had to drive out and look, or sit through a county meeting, or read a chain of title nobody had opened in forty years.