- the GDL bible by David Nicholson Cole
- Download-Link: nottingham.ac.uk
Category: Documentation
GDL Paper and Web documentation sources
GDL Handbook
- A comprehensive guide to creating powerful ArchiCAD objects
- Please use search engine because no longer available on the official site
GDL Onlinekurs
https://www.a-null.com/GDL-Onlinekurs/
- GDL Online Course in German from A-Null
gdl.graphisoft.com
- gdl.graphisoft.com
- GDL Center – The GDL knowledge base
- Reference Guide
- Learning
- Tips and Tricks
- Forum
GDLschmiede
- GDLschmiede: Tools and strategies for GDL object development
Isku
https://isku.com/en/object-libraries/
- Furniture Library
Kinnarps
https://www.kinnarps.co.uk/design-tools/product-downloads/
- Furnitur GDL Library
List of all Commands and Keywords
gdl.graphisoft.com/reference-guide
- Alphabetical List of all GDL commands and keywords
- Topical orderer List of all GDL commands and keywords
opengdl.org
- opengdl.org
- GDL-Projects as Open Source Project
- Platform for development of free GDL objects.
selfGDL
- https://www.selfgdl.de
- selfGDL is the detailed command reference of all known GDL commands from GDL enthusiasts Frank Beister and Jochen Suehlo.