How To: Absurd Scientific Advice for Common Real-World Problems from Randall Munroe of xkcd

Squirrel #2: Severe Turbulence

Chibi! The Official Mark Crilley How-to-Draw Guide

Pop Manga: How to Draw the Coolest, Cutest Characters, Animals, Mascots, and More

Whirlwind

Drawing Cutting Edge Anatomy: The Ultimate Reference Guide for Comic Book Artists

The Green Elephant (Or How to Get a Girl's Attention)

Cisano's comic: Cartoons collection

Chibi Art Class: A Complete Course in Drawing Chibi Cuties and Beasties - Includes 19 step-by-step tutorials!

Squirrel #1: Hit-n-Run (w/ bonus story: Cy-Boar #2.5: The Dead)

Stan Lee's How to Write Comics: From the Legendary Co-Creator of Spider-Man, the Incredible Hulk, Fantastic Four, X-Men, and Iron Man

Anime Art Class: A Complete Course in Drawing Manga Cuties

The Art of Comic Book Writing: The Definitive Guide to Outlining, Scripting, and Pitching Your Sequential Art Stories

The Comic Book Lesson: A Graphic Novel That Shows You How to Make Comics