The Golden Dawn by Israel Regardie is the complete workings of the 'Golden Dawn' school of magic. It mixes ancient Egyptian ritual and the Kabbalistic Tree Of Life type workings. a lot of people use at least an one or two rituals form this system and it has got out in to the world and been blended in many cases with other magical systems, except by the purists.
The Shem Grimoire by Nick Farrell covers the workings of the Shemhamphorash Angels, the 72 Angels Of God. The book clearly sets out the detailing for each angel and their abilities.
