For "adventure - true to life" type reading, Jean-Pierre Hallet's, Congo Kitabu can't be beat.
But speaking of best sellers, after three years, I'm still working on finishing Stephen Ambrose's Lewis & Clark epic, Undaunted Courage.
I love Jeffrey Deaver-his Lincoln Rhyme books are special. Just finished the Stone Monkey and am looking forward to a new one to be released in March about a criminal illusionist.
For mystery buffs, I recommend Elizabeth George. Her series features Lord Lynley and Lady Helen...She is an American author who writes English mysteries...very, very well.
And if you want some really hillarious fun reads, the Janet Evanovich Stephanie Plum series is sidesplitting.....