Running to twelve boxes, including correspondence with authors, publishers, and artists, and autograph manuscripts, the collection represents a very full record of Arthur Caddick's published career and of his engagement in the political and cultural landscape of West Penrith, Cornwall. Correspondents in the collection include some time Poetry Review editor Derek Parker, artists Peter Lanyon and William Redgrave, the publisher Toni Savage, and writer and critic Denys Val Baker.
The collection can be roughly summarised as follows: box 1 general correspondence and poetry drafts; box 2 scrapbooks of presscuttings; box 3 legal papers; box 4 poetry drafts and presscuttings; box 5 personal family papers and general correspondence; box 6 pocket diaries and notebooks, family papers and correspondence with William Redgrave; box 7 letters from publishers including Eric Quayle and Toni Savage; box 8 general correspondence and presscuttings; box 9 poetry drafts; box 10 drafts of prose works including Laughter from Land's End; box 11 prose drafts, including a heavily annotated copy of Laughter from Land's End, memoirs by his wife and daughter, and copies of some of his publications; box 12 his own copies of publications and some fine typescripts.