diff --git a/public/static/index.md b/public/static/index.md
index 6f0bdae..869c58c 100644
--- a/public/static/index.md
+++ b/public/static/index.md
@@ -1,5 +1,7 @@
 ## simple ranked choice voting
 
+In [ranked choice voting](https://en.wikipedia.org/wiki/Ranked_voting), voters rank their preferences instead of just their top choice. It eliminates the need for strategic voting. Specifically, this site uses [instant runoff voting](https://en.wikipedia.org/wiki/Instant-runoff_voting).
+
 [create a poll](/create)
 
 [source code](https://gitlab.com/winesj/rcv-site)