The most important book in Act 1 is the Nikodemus manuscript => giving a clue how to build a bomb. And a note from Gen. Bram, indicating, you should be careful. Most are just adding atmosphere to the game, some contain cooking recipes - I read them all, cause I like deciphering on my own. And there is one note in a corpse (in Raanaar) - giving a clue about an important helper.
Act 2 => well, if a book says something like "diary" => please, read it. And I hope, you like the high leveled Shakespearian Imp poetry the same as I do <img src="/ubbthreads/images/graemlins/biggrin.gif" alt="" /> (Love under the mushrooms). Some books contain hints.
