| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| C. S. Lewis: Images of His World | 978-0-8028-2800-2 | 2005 | Douglas R Gilbert |
| C.S.Lewis: Images of His World | 978-0-8028-1622-1 | 1973 | Douglas Gilbert |
| C.S. Lewis: Images of His World | 978-0-8028-3434-8 | 1973 | Douglas R. Gilbert |
| Images of Salvation in the Fiction of C. S. Lewis | 978-0-87788-391-3 | 1978 | |
| Minority of One: A Biography of Jonathan Blanchard | 978-0-8028-1015-1 | 1982 | |
| The Christian World of C. S. Lewis | 978-0-8028-0871-4 | 1995 | |
| The Sexual Revolution | 978-0-8028-1545-3 | 1973 | Douglas Gilbert |
| Tolkien & The Silmarillion | 978-0-87788-816-1 | 1976 | |
C. K. · C.S. · Clyde Kilby · Mr. Clyde S. Kilby · S.K.