The book “Designs of Inigo jones and Others” was first published in 1731 by English architect Isaac Ware (1704-1766). After his studies in the field of architecture Ware became a member of the St. Martin’s Lane academy, which helped shape the English Rococo movement. Isaac Ware worked mostly for private patrons, building lavish houses, but also a small amount of country homes. I believe, the aim of Isaac Wares books is to precisely depict the architecture of buildings, so that he and his colleagues can study them.
Except for the glossary the book contains no text and shows roughly 100 pages of plans, sections and detailed drawings and illustrations of various elements such as chimney, dining rooms and garden seats. The proportions of the book are quite small, just like a pocketbook, perfect for taking with you on long architecture expeditions. The title of the book mentions Inigo Jones, who as the first important English architect and the first to apply the Vitruvian rules of proportion and symmetry in his buildings.
In conclusion, I believe Isaac Wares fascination with Inigo Jones Designs motivated him to illustrate his principles in a pocketbook ready to take with him on long journeys through the English countryside.