Overviews: what it is, what things are called, how it works
ClipperCMS started out as a fork of MODX Evolution. You can read more about that here. In brief, the people that have been working on Clipper wanted to keep Evolution's small footprint, fast operation and transparency of development, and improve and develop the core code to keep up with developments in PHP and the challenges of current trends in website construction.
There is a massive overlap with Evolution and if you have used MODX in the past you should have no difficulty in finding your way around. Most well-written snippets written for Evolution, at least up to version 1.0.6, should work in Clipper with little adaptation.
Content in the Overviews so far consists of the Clipper CMS Glossary. The section will be expanded with more "how it works" articles, including an overview of the API and the parsing process.