The ‘Abbott Book’ is a seventeenth-century pocketbook of over three hundred pages of drawings and notes on decorative plaster and paint made by members of the Abbott family of Devonshire. It has a long and contested history. From the 1920s through to the 1950s, it was given sixteenth-century origins and described as a compilation made by several generations of the Abbott family. During this period, the book’s drawings were used to attribute much sixteenth- and seventeenth-century decorative plaster in the south-west of England to the Abbott dynasty of plasterers. Then, through the 1980s and 1990s, the Abbott story was revisited and dramatically revised. The book was declared a post-1660 work and previous notions of several generations of Abbotts creating it were dispelled. The whole work was reattributed to one man, John Abbott, who was born in 1642 and died in 1727. As a result, plasterwork across the south-west was reattributed to an anonymous ‘Devon School’ of plasterers and, with its new and dramatically shortened lifespan, the book’s usefulness as a source for the broader practices of plasterwork in the period was diminished. Using new evidence relating to watermarks, the genealogy of the Abbotts, the plasterwork they produced and the print sources they used for drawings in the book, this article rewrites the Abbott Book story. It restores the notion that the pocketbook was used by several different members of the Abbott family — at least three and possibly four — over the 150 years between c. 1580 and 1727. By providing a logic and a timeline for its complex compilation pattern, it allows the drawings in the book to shed new light on the design and production processes of seventeenth-century plasterwork not just in Devon, but also in England as a whole.