Here is a list of my favourite books/series of books. Without further ado:
1 - Phantom of the opera
2 - Star Wars Thrawn Trilogy
3 - Angels and Demons, The DaVinci Code, The Lost Symbol
4 - Star Wars Darth Bane Trilogy
5 - The Conqueror Trilogy
6 - The Art Of War
7 - The Rifts Trilogy
8 - The Ninja and Their Secret Fighting Art
9 - Robotech series
10 - Star Wars Republic Commando/Imperial Commando series
Honourable mention goes to:
The Hobbit
Star Wars The Jedi Path
Star Wars vs Star Trek
The Supernatural Book of Monsters, Spirits, Demons and ghouls
Star Trek the Next generation Vendetta
Choose Your Own Adventure series
Most Star Wars novels in general