If you are new to Islam, or if you know someone who recently accepts Islam as their religion, here is Welcome to Islam: A Step-by-Step Guide for New Muslims written by Mustafa Amar. It is a really nice, sophisticated guidebook written in English. You will find inside such helpful information as prayer motions, dress code, food you must not eat, challenges you might meet in your journey as a new Muslim and more.
Best thing about the book? You can read the full version for free online. ^.^ Good luck!