External Links

Tutorials

Short & Sweet

Official Git Tutorial

The official gittutorial man page is a good place to start.
Git Immersion

A guided tour that walks through the fundamentals of Git.

Everyday Git

Learn the basics with 20 of the most common commands.
Backlog Git Tutorial

It includes an introduction for complete beginners as well as hands-on tutorials for intermediate learners. ( Japanese / Korean / Simplified Chinese / Traditional Chinese / Vietnamese )

Diving Deeper

Ry’s Git Tutorial

A hands-on introduction to the entire Git porcelain.
Git for Computer Scientists

A quick introduction to Git internals for people who aren't scared by words like Directed Acyclic Graph.
Git Magic

An alternative book with the source online.
Git for Data Science

Best practices and typical Git workflows for data science.

Git for Designers

No knowledge of version control? No problem.
git-draw

git-draw is a small tool that draws nearly the full content of a tiny git repository as a graph. It helps people with an engineering background learning Git's internals.
GitHub Docs

Guides on a variety of Git and GitHub related topics.

Books

Pro Git

By Scott Chacon and Ben Straub
Git in Practice

By Mike McQuaid
Git in the Trenches

By Peter Savage
Git for Teams

By Emma Jane Hogbin Westby
Learning Git: A Hands-On and Visual Guide to the Basics of Git

By Anna Skoulikari

Version Control with Git, 2nd ed.

By Jon Loeliger & Matthew McCullough
Pragmatic Guide to Git

By Travis Swicegood
Pragmatic Version Control Using Git

By Travis Swicegood
Git Internals Peepcode PDF

By Scott Chacon
Learn Git in a Month of Lunches

By Rick Umali
Beginning Git and GitHub

By Mariot Tsitoara
Boost Your Git DX

By Adam Johnson

Videos

Tech Talk: Linus Torvalds on Git

Linus Torvalds visits Google to share his thoughts on Git, the SCM system he created.

Introduction to Git: Scott Chacon

This talk introduces the Git Version Control System by looking at what Git is doing when you run the commands you need to do basic version control with it.

Courses

Versioned and reproducible storage of code and data

In this course you will learn how to create reproducible research results and write source code efficiently together.

Versioned and reproducible storage of code and data

Three-day course on Git in data science