diff --git a/GB_is_cgb.md b/GB_is_cgb.md
index e76216a..9309660 100644
--- a/GB_is_cgb.md
+++ b/GB_is_cgb.md
@@ -6,8 +6,15 @@ In `gb.h`
 
 ## Description
 
-TBD
+Returns `true` if the emulator instance currently emulates a Game Boy Color or a newer model.
 
 ## Thread Safety
 
 `GB_is_cgb` is thread-safe and can be called from any thread and context.
+
+## See Also
+
+* [[GB_model_t]]
+* [[GB_get_model]]
+* [[GB_is_hle_sgb]]
+* [[GB_is_sgb]]
\ No newline at end of file