MIKE 21 includes extensive up-to-date manuals, also tutorials with step-by-step manuals including a selection of models, most of them from real-world examples.
If you have installed MIKE 21, including if you have only the demo-version, the manuals and examples are also installed. If you have made a standard installation you will find all that here: C:\Program Files (x86)\DHI\2014\MIKE Zero
If you have not installed MIKE 21, you can install a demo-version from our web-site: http://mikebydhi.com/Download/MIKEByDHI2014.aspx
Good luck !