# Documentation

## How to use DrScheme

How to use DrScheme provides information about using the DrScheme (or DrScheme Jr) development environment.

## Languages and Libraries

Language and library documentation is distributed among several manuals, plus a number of plain-text files describing small library collections.

When you search, Help Desk groups the results by manual and collection. The manuals are ordered from the most-used documentaion (e.g., R5RS Scheme) to the least-used (e.g., MzScheme internals), and all manuals precede library collections.

The PLT distribution archive includes a partial set of documentation. A hyperlink in this partial set may refer to a manual that is missing from the distribution. If you follow such a link, Help Desk provides a special page for automatically downloading and installing the missing manual. For certain manuals, the PLT distribution includes a searchable index file rather than the whole manual, so a search result link might refer to a missing manual.

- Manuals: List the currently installed and uninstalled manuals

## Searching

Searching in Help Desk finds documenation from all sources, including How to use DrScheme and the language and library documentation.