Now through November 26th, get 50% off all ebooks! Use coupon code GRAVYBOAT.


How Linux Works, 2nd Edition

How Linux Works, 2nd Edition: for those who want to understand the inner workings of the best operating system.

Steampunk LEGO

Filled with dirigibles and floating cities, penny-farthings and pirate ships, Steampunk LEGO is a collection of Victorian-era sci-fi treasures, all in LEGO.

Beautiful LEGO 2: Dark

Acclaimed artist Mike Doyle is back with more amazing LEGO art in Beautiful LEGO 2: Dark, a new collection of awe-inspiring LEGO masterpieces.

Book of CSS3, 2nd Edition

The Book of CSS3, 2nd Edition distills the murky language of the CSS3 specification into plain English.


The LEGO MINDSTORMS EV3 Idea Book contains hundreds of ideas for building unique robotic and mechanical creations.

Incredible LEGO Technic

Enter a world of machines in Incredible LEGO Technic, a unique gallery of LEGO models with a technical twist.

Art of the Brick

The Art of the Brick is the stunning photographic showcase of the work that made Nathan Sawaya the world's most famous LEGO artist.

Android Security Internals

Android Security Internals gives you a complete understanding of the security internals of Android devices.

Art of LEGO MINDSTORMS EV3 Programming

The Art of LEGO MINDSTORMS EV3 Programming is a beginner-friendly, in-depth guide to the EV3 programming language.

If Hemingway Wrote JavaScript

If Hemingway Wrote JavaScript playfully imagines JavaScript programs as written by famous authors.

Rails Crash Course

Rails Crash Course shows you how to harness Rails to build web applications that are fast, stable, and secure.

Book of PF, 3rd Edition

The Book of PF, 3rd Edition is the essential guide to building a secure network with PF, the OpenBSD packet filtering tool.

LEGO Neighborhood Book

The LEGO Neighborhood Book is your guide to creating incredible LEGO buildings and cities.

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Coming Soon   (see all)

Bitcoin for the Befuddled

With clear explanations and comics, Bitcoin for the Befuddled covers everything you need to know about the Internet currency. Now available as Early Access

Black Hat Python

Black Hat Python explores the darker side of Python, helping you test your systems and improve your security posture.
Now available as
Early Access

Lauren Ipsum

Lauren Ipsum is a whimsical illustrated journey filled with fun characters that bring logic and computer science puzzles to life.

JavaScript for Kids

JavaScript for Kids is a lighthearted introduction to the JavaScript language and programming in general. Now available as Early Access

Ruby Wizardry

Ruby Wizardry is a modern-day fairy tale that teaches programming skills kids can use.
Now Available as
Early Access

Eloquent JavaScript, 2nd Edition

Eloquent JavaScript, 2nd Edition shows you how to write elegant, effective JavaScript code.
Now available as
Early Access

Python Playground

Python Playground is a collection of fun programming projects that will level up your Python skills.

iOS Application Security

iOS Application Security covers everything you need to know to design secure iOS apps from the ground up. Now available as Early Access.

Junkyard Jam Band

Junkyard Jam Band is a collection of DIY musical instruments made from everyday materials, for any lover of music making or crafts.

Book of GNS3

The Book of GNS3 teaches you to use GNS3 to simulate network connections and troubleshoot potential problems, all using a single computer.

Doing Math with Python

Doing Math with Python teaches you how to use Python as a tool to delve into math concepts.

Manga Guide to Physiology

The Manga Guide to Physiology provides a fun introduction to physiology in comic form.

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