"This tutorial shows you how to obtain help from Emacs in various ways. After working through this tutorial, you'll know how to get descriptions of keystrokes, commands, functions, and read and browse through the many documentation resources that come with this world-famous open source editor. [...]

GNU Emacs is an extensible, customizable text editor—and more. At its core is an interpreter for Emacs Lisp, a dialect of the Lisp programming language with extensions to support text editing. In addition to a large number of bugfixes, 23.2 includes several new packages, such as the CEDET suite of development tools and a new mode for editing Javascript.

"Emacs is a class of text editors that have an extensive set of features and that are popular with computer programmers and other technically proficient computer users. GNU Emacs, a part of the GNU project, is under active development and is the most popular version.

This directory tree holds version 23.0.60 of GNU Emacs, the extensible, customizable, self-documenting real-time display editor. See also emacs-tiny-tools.git: http://git.sv.gnu.org/gitweb/?p=emacs-tiny-tools.git;a=tree;h=a78de25444...

"...Emacs is the world’s best text editor. It’s not just the best for editing program source; it’s the best for any kind of text-editing. Mastering Emacs will make you more effective at writing and editing email, documentation drafts, blogs, HTML pages, XML files, and virtually everything else that requires any typing..."

Emacs is not so much a text editor, more a way of life - an "extensible, customizable self-documenting real time display editor" with thousands of ready made extensions that take you way beyond its original remit as a text editor

"...Emacs is an extensible, customizable, full-screen text editor. You can learn enough to be productive in Emacs in 30 minutes, but there is enough to learn about Emacs to keep you busy for years. The goal of this tutorial is to show you enough so that you are comfortable using Emacs as a work environment, not just as a text editor..."

"If you've never been convinced before that Emacs is the text editor in which dreams are made from, or that inside Emacs there are unicorns manipulating your text, don't expect me to convince you [...] You see, Emacs isn't a text editor. Emacs is a programming language that you can use to write your own text editor..."

"...Emacs is a text editor. And it’s a lot more — sometimes too much. I know of a number of Emacs users who practically live in the editor. As I pointed out in a previous post, some users go a little overboard with the way in which they use Emacs — as a personal information manager, as a mail client, and even as a Web browser.