A collection of useful introductions and tutorials for new Mercurial users.
Understanding Mercurial - a graphical illustration of basic Mercurial concepts
Tutorial - a step-by-step guide for for the basics
QuickStart - a cheat sheet for the impatient
Getting started exercises: Mercurial Kick Start
Hg Init - a Mercurial introduction by Joel Spolsky
A tutorial based on examples: MercurialByExample.pdf
The article Inside a distributed version control system (PDF, 13 pages)
Quick Reference Cards and Cheat Sheets (PDF and PNG) to decorate your desk
hg tip - Learn Mercurial one bite-sized tip at a time.
A guide to branching by Steve Losh
Links to various tutorials in Russian.