Each of these answers a single question a product manager actually gets asked, in eight to fifteen pages. They are drawn from the series but written to stand alone, so you can hand one to a room that has not read any of the books.
They are ordered here the way I would read them, not alphabetically. Start anywhere. Every one is free to read on this page and free to download.








All eight are free. No email, no form. If one is useful, the four books behind them are free to read online as well.