The Thatchers Craft deals with the history of thatching, the stage-by-stage construction using long straw, combed wheat or water reed, and has chapters on materials, tools and roof construction.
The publication is available as facsimiles of the book as 10 PDF documents. You can download these by clicking on the title links.

Part 1

Part 2

Part 3

Part 4

Part 5

Part 6

Part 7

Part 8

Part 9

Part 10