We have videos and documentation.
The formal Web Portal documentation is stored here:
We also have articles on our knowledgebase
The same knowledgebase may be used for erwin workgroup edition and the other products that we have.
All the documentation for erwin and the mart server (workgroup edition) may be found online. Please click here
Also, there is documentation stored in the installed erwin dm directory that is usually:
C:\Program Files\erwin\Data Modeler r9\erwin Bookshelf\Bookshelf_Files\PDF
And the online help.
On the erwin, Inc. site we have white papers
Another route is our education department Or please consult with erwin, Inc. Sales for education. Or one of our partners.