encyclopedia
"An elaborate and exhaustive repertory of information on all the branches of some particular art or department of knowledge; esp. one arranged in alphabetical order."
handbook
"Originally: a book small enough to be easily portable and intended to be kept close to hand, typically one containing a collection of passages important for reference or a compendium of information on a particular subject, esp. a book of religious instruction (now historical). Later also more generally: any book (usually but not necessarily concise) giving information such as facts on a particular subject, guidance in some art or occupation, instructions for operating a machine, or information for tourists."
[Oxford English Dictionary]