G. D. Laval's "Black Magick Evocation of the Shem Ha Mephorash" is quite the exquisite modern Grimoire, which packs a complete system of Goetic magick which can be used to summon the fractured disembodied intelligences that make up the greater Shem Ha Mephorash system. The Shem Ha Mephorash itself is the supposed sacred name of god embodied within a particular passage of the Bible. Derived from the text using advanced Gematria (a Hebrew practice of using numerology to find esoteric correspondences between different words and concepts, as well as used to sharpen the mind and create complicated ciphers and hidden text such as this name itself), this name is broken into 72 three letter seals, which can be used to either invoke an angelic entity or evoke a Qliphothic one. These entities are metaphorical representations of different energetic currents which run parallel across both The Tree of Life and Tree of Death, also described in greater detail in the study of Kaballah, and have governance over particular traits or faculties of the ruling forces of the universe. This book, hence the name Black Magick Evocation, focuses predominantly on Qliphothic evocation, though it is said that the information provided within could theoretically be used to do Angelic Invocations as well with creative reworking. However, the greater symbolical meanings provided for each individual potential seal of invocation/evocation, which can often go on for several pages per individual seal, is almost exclusively pertaining to uses of Left Hand Path evocation.