Margin of Safety – Seth A. Klarman

The disciplined pursuit of bargains makes value investing very much a risk-averse approach. The greatest challenge for value investors is maintaining the required discipline. Being a value investor usually means standing apart from the crowd, challenging conventional wisdom, and opposing the prevailing investment winds.

It can be a very lonely undertaking. A value investor may experience poor, even horrendous, performance compared with that of other investors or the market as a whole during prolonged periods of market overvaluation. Yet over the long run the value approach works so successfully that few, if any, advocates of the philosophy ever abandon it. – Seth Klarman

Note from @christine: Generally out of print. You may want to search online to find out how to find this elusive book. 🙂