| At Risk by Stella Rimington - 2006 - 398 pages |
| At Risk by Stella Rimington - 2005 - 576 pages |
| At Risk by Stella Rimington - 2005 - 416 pages |
| Athena by Franklin Bandy - 1987 - 309 pages |
| Atlantis by Robert Klassen - 2000 |
| Atropos by William L. DeAndrea - 2012 - 227 pages |
| Attack of the Seawolf by Michael DiMercurio - 1993 - 352 pages |
| Au Revoir À la France by James J. Raciti - 1999 - 360 pages |
| Authority of Thieves by Richard J. Flaster - 2002 - 368 pages |
| Avenger by Frederick Forsyth - 2010 - 352 pages |
| Avenger by Frederick Forsyth - 2004 - 352 pages |
| Avenger by Frederick Forsyth - 2003 - 530 pages |
| Avenue of the Dead by Evelyn Anthony - 1983 - 252 pages |
| Avé Blue by Stephen Burrell - 2005 |
| Axis Mundi by David Warren Saxe - 2004 - 320 pages |
| Axis Mundi Sum by D. A. Smith - 2003 - 484 pages |
| Azrael by William L. DeAndrea - 2012 - 216 pages |