Rules

The 22 Immutable Laws of Marketing, Violate Them at Your Own Risk

Al Ries,Jack Trout

Dungeons & Dragons: Dungeon Master's Guide

Wizards RPG Team

Dungeons & Dragons (D&D 3.5) - Dungeon Master's Guide

Dungeons & Dragons (D&D 3.5) - Dungeon Master's Guide II

English for Everyone: English Grammar Guide: An ESL Beginner Reference Guide to English Grammar Rules

DK

A Hacker's Mind: How the Powerful Bend Society's Rules, and How to Bend Them Back

Bruce Schneier

English Grammar Essentials For Dummies

Wendy M. Anderson,Geraldine Woods,Lesley J. Ward

Statistical Rules of Thumb

Gerald van Belle

HVAC Equations, Data, and Rules of thumb

A. Bell JR

Half-Real: Video Games between Real Rules and Fictional Worlds

Juul,Jesper

The Construction of Social Reality

John R. Searle

Contract Law : Rules, Theory, and Context

Brian H. Bix

The EU, NATO and the Integration of Europe: Rules and Rhetoric

Frank Schimmelfennig

On commutation rules in the algebra of quantum mechanics

McCoy N.H.