Profile and Type Reference Book
8.5 x 11 in
by Ra Uru Hu
The Profile and Type Reference book contains overviews of each of the Four Types and each of the Twelve Profiles. The bulk of the text is comprised of descriptions of the Forty-Eight Profile and Type Combinations and how they function.
Each Profile section has tables illustrating the fundamental keynotes the Profiles are derived from. Below is an example from the 1/3 profile.