diff --git a/Serialization.md b/Serialization.md
index 3288ba4..996af5c 100644
--- a/Serialization.md
+++ b/Serialization.md
@@ -38,6 +38,8 @@ This format is described by the ISO 10303 standard. The standard includes an "In
 
 There's an experimental Rust crate for reading and writing STEP files, called [ruststep](https://github.com/ricosjp/ruststep).
 
+This [blog post](https://zacxalot.github.io/step/4-express-parser/) about writing a STEP parser includes some concrete examples of STEP files.
+
 ### IGES
 
 [This page](https://innovation.world/it/invention/iges-step/) claims that IGES "lacked the ability to store higher-level information like feature history or assembly constraints."