The collection has 474 architectural drawings by Graeme Thiedeke from his time working as a student in the 1960s, to his work in Canada, Mexico, Malayasia, United Arab Emirates and Australia. Thiedeke has provided details for most of these plans which includes the name of the client, the brief from the client and historical information about the building. There are supplementary documents to the jobs Graeme Thiedeke worked on, which includes drawings, articles, presentation sets, architectural plans, photographs of architectural plans and photographs. Thiedeke has been writing while working as an architect and there sample of books created by him. The topics are far ranging and include philosophy, poetry, short stories, and various architectural projects.

Plates and illustrations, from various journals, collected by G. H. M. Addison. Each volume has its title on the spine.

[Item 1] Church architecture, plates from The British Architect 1886, 49 x 38 cm.
[Item 2] Public buildings, includes plates from The Building News, The Builder, The Architect, The British Architect, 1880 to 1887, 43 x 33 cm.
[Item 3] Architectural drawings, includes plates from The Building News, The Builder, 1888, 43 x 33 cm.
[Item 4 ] Churches, includes plates from The Building News, The Builder, American Architect and Building News, 1889, 43 x 33 cm.
[Item 5] Churches, includes plates from The Builder, The Building News, Architectural Illustration Society, 1888 to 1889, 43 x 32 cm.
[Item 6] Street architecture, includes plates from American Architect and Building News, The Builder, The Architect, 1889, 43 x 32 cm.
[Item 7] American architecture plates, includes plates from The Builder, American Architect and Building News, The Building News, 1891, 44 x 33 cm.