- Series: Triangulation Series Record # 27886
- Triangulation
- Triangulation 2003: A Confluence of Speculative Fiction (2003) [A] by Diane Turnshek
- Triangulation 2004 (2004) [A] by Barbara Carlson
- Triangulation: End of Time (2007) [A] by Pete Butler
- Triangulation: Taking Flight (2008) [A] by Pete Butler
- Triangulation: Dark Glass (2009) [A] by Pete Butler
- Triangulation: End of the Rainbow (2010) [A] by Bill Moran
- Triangulation: Last Contact (2011) [A] by Jamie Lackey and Stephen V. Ramey [only as by Jamie Lackey and Steve Ramey]
- Triangulation: Morning After (2012) [A] by Stephen V. Ramey
- Triangulation: Parch (2014) [A] by Stephen V. Ramey
- Triangulation: Lost Voices (2015) [A] by Jamie Lackey
- Triangulation: Steel Cities (2016) [A] by Stephen V. Ramey
- Triangulation: Beneath the Surface (2016) [A] by Jamie Lackey
- Triangulation: Appetites (2017) [A] by Douglas Gwilym and Frank Oreto
- Triangulation: Extinction (2020) [A] by Isaac E. Payne and Diane Turnshek