There is a new beta version of these workshop materials available here: http://ronallo.com/iiif-workshop-new/
The same materials are available there in basically the same order. Please consider trying out that version and reporting any bugs. You can always return here if something doesn't work there.
Why a Presentation API?
- Many images for one object
- painting photograph and x-ray
- Human presentation
- Navigation and ordering
- Display of metadata
- Links to related resources
- Platform for annotation
- Embedding resources in blogs and other web pages