The Watkins Dictionary of Angels: Over 2,000 Entries on Angels and Angelic Beings by Julia Cresswell
This comprehensive dictionary features detailed entries on all the angelic references in Judaism, Christianity and Islam, as well as angel figures from other traditions such as Zoroastrianism. It also includes angels in folklore, in a wide range of literary and spiritual writings, both ancient and modern, and in television and film. The entries are cross-referenced to show how an angel may appear in a number of different guises - tracing, for example, the role of Gabriel in Judaism, Christianity and Islam. Each angel is described in detail, including physical appearance, function and position in the hierarchy of angelic beings, other possible names, and in which spiritual traditions. The dictionary also includes a helpful index listing angels by function or area of influence.