diff --git a/plantStructC4.adoc b/plantStructC4.adoc
index aa39d99..abdea02 100644
--- a/plantStructC4.adoc
+++ b/plantStructC4.adoc
@@ -1,3 +1,17 @@
 === plantStructC4.adoc
 
 ==== Diagramming IAM with PlantUML, Structurizr, Dot, and C4 models
+
+===== Start simple
+
+
+https://plantuml.com/
+ <= home page, Plantuml +
+https://plantuml.com/link
+ <= how to include hyperlinks in PlantUML diagrams +
+https://crashedmind.github.io/PlantUMLHitchhikersGuide/
+ <= Hitchhiker's guide to Plantuml +
+http://plantuml.com/guide
+ <= Plantuml Guide in PDF +
+ https://forum.plantuml.net/5852/data-flow-diagrams
+ <= data flow diagrams using dot (layer under plantuml) +