4 books in series

Cambridge Tracts in Theoretical Computer Science

Cambridge Tracts in Theoretical Computer Science is a 4-book series with 4 primary works first released in 1987 with contributions by Gregory Chaitin, N. Shankar, Anne S. Troelstra, H. Schwichtenberg, Patrick Blackburn, Maarten de Rijke, and Yde Venema.

Basic Proof Theory
Algorithmic Information Theory
Metamathematics, Machines and Gödel's Proof
Modal Logic