Handbook
Handbooks are collection of miscellaneous facts on a particular theme or year. They generally assume knowledge; hence they are usually used to provide answers to specialist queries. E.g Guinness World records.
A handbook is a type of reference work, or other collection of instructions, that is intended to provide ready reference .
A handbook is a treatise on a special subject. Nowadays it is often a simple but all-embracing treatment, containing concise information and being small enough to be held in the hand.
A handbook is sometimes referred to as a vade mecum (Latin, "go with me") or pocket reference that is intended to be carried at all times. It may also be referred to as an enchiridion.
Handbooks may deal with any topic, and are generally compendiums of information in a particular field or about a particular technique. They are designed to be easily consulted and provide quick answers in a certain area. For example, the MLA Handbook for Writers of Research Papers is a reference for how to cite works in MLA style, among other things.