This would be a great introductory book for anyone who is curious about the Jewish faith and its basic principles.
The Essential Kabbalah uses a variety of poetry and stories taken from ancient texts to help explain the origins of Kabbalah. This is a very user friendly book that lays out the history behind each writer referenced. You would not need an extensive theological background to be able to grasp this book. His translations are revered by modern scholars as being some of the best translations.