Halo 2: The Official Game Guide by Piggyback Interactive Ltd.

Halo 3: The Official Strategy Guide

Halo 3: The Official Strategy Guide, Piggyback, Book

The Fall of Reach (Halo, Bk. 1) - Paperback, by Nylund Eric - Acceptable

Halo 2: The Official Game Guide by Piggyback Interactive Ltd.

Halo 4: Prima Official Game Guide - Paperback By Hodgson, David - GOOD

Halo 3 by Piggyback Interactive Ltd Staff (2007, Trade Paperback)

First Strike (Halo #3) - Mass Market Paperback By Nylund, Eric - ACCEPTABLE