The Sleuth Investor by Avner Mandelman is a different kind of investment book than most other financial books which cover more traditional aspects of investing. This book focuses squarely on what a small investor (or firm) should be doing in order to gain an advantage against the rest of the market. As the title depicts, the advantage investors with a smaller capital base can gain is by physically “sleuthing” the target investment company. Because many analysts and larger investment firms do not do much physical investigation, one can theoretically gain an advantage by doing the more difficult work. The...