diff --git a/README.md b/README.md
index 36240f4..c2032eb 100644
--- a/README.md
+++ b/README.md
@@ -47,6 +47,9 @@ Astrophysicist (University of Arizona) with a background in Quantum Field Theory
Linkedin resume:
https://www.linkedin.com/in/eric-w-davis/
+Detailed bio:
+https://lifeboat.com/ex/bios.eric.w.davis
+
Book: "Frontiers of Propulsion Science" by Marc G. Millis and Eric W. Davis:
https://arc.aiaa.org/doi/book/10.2514/4.479953