Here are the MLB Official Rules:
Foreword
Introduction
1.00 – Objectives of the Game
2.00 – Definition of Terms
3.00 – Game Preliminaries
4.00 – Starting & Ending Game
5.00 – Putting the Ball in Play
6.00 – The Batter
7.00 – The Runner
8.00 – The Pitcher
9.00 – The Umpire
10.00 – The Official Scorer
11.00 – Index
Baseball Basics
On the Field
Keeping Score
Baseball Lingo
Abbreviations
Stats 101