As with any religion, degrees of interpretation and observance produce a wide range of practices. For more, try An Introduction to Islam by Frederick Denny, Islam: We Straight Path by John Esposito, or Ideals and Realities of Islam by Seyyed H. Nasr. A sampling of Islamic texts can be found in Kenneth Cragg and Mar-ston Speight’s Islam from Within. If you feel inspired enough to study the Qur’an, read Muhammad Pickthall’s Meaning of the Glorious Koran.