[mheathr]

This includes both the user's manual, the reference manual, and platform specific information in one file. The user's manual is a subset of the reference manual, and that is 500-600 pages long by itself. The reference manual is enormous, but that is the nature of reference manuals. What is even more shocking is how clear the reference material is despite its breadth and technical subject.

It's an excellent example of how to write quality documentation. What Vim's maintainers get, and what is often neglected in products, is that the documentation is part of the product's value and must be as high of a priority as the rest of the product. If you have had the misfortune of working with Cadence's OrCAD (or pretty much any engineering software) the value of excellent documentation being available is very apparent.

Despite OrCAD's potentially 20k+ USD cost the documentation is very scant and greatly harms its barrier to entry for user's; as a result understanding how it works require tutelage from another expert as though writing has not yet been invented and stories are still only being passed down orally.