The book under review is a grammatical sketch of the Pasaale variety of Sisaala, a.k.a. Southern Sisaala. Sisaala is a cluster of lects spoken in northwestern Ghana, reaching into Burkina Faso. It belongs to the Grusi subgroup of Central Gur.
There have been a few publications on various Sisaala lects, e.g., Blass 1975, 1990; Rowland and Rowland 1965, and Rowland 1966. One of the authors of the book under review, Mike Toupin, wrote a phonological description of Sisaala-Pasaale (Toupin 1995).
Since the phonology of Pasaale was already described by Toupin 1995, the authors treat only morphology and syntax. Their corpus consists of a body of recorded texts, conversations, and elicited materials. Their description is prose-like and not following any particular formalism. According to the authors and judging by the look of some of the tables, their theoretical base is tagmemics.