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A Quick Guide to the Cass Theory of
Lesbian & Gay Identity Formation



Vivienne Cass’ new book offers a snapshot of the theory she wrote which has at its core the psychological process by which people develop a lesbian or gay identity. Written 45 years ago and still used extensively today, Dr Cass integrates, for the first time, the various facets of her theory that have previously been dispersed throughout various publications. This brief overview addresses the often held myth that the theory is simply a  description of the six stages of identity formation, and reveals the complete theoretical framework in which this process is actually embedded. It offers an excellent resource for researchers, educators and health professionals, both those new to the theory and those wishing to confirm their understanding of it.

The book is available as an ebook and can be obtained from all major ebook stores, including: and For further information go to


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