I few years back, I donated all the hard copies of my books to a local library that promoted a STEM-for-Girls program. I STILL have e-book copies of all the following and others.
- Unix in a Nutshell
- The Definitive Guide To HTML5 (I've owned three editions)
- JavaScript - The Definitive Guide (I've owned three editions)
- CSS: The Definitive Guide (I've owned two editions)
- O'Reilly Shortcut: Intro To Testing Web Applications With Twill And Selenium
- Save the Pixel
- The Book Of CSS3 - A Developer's Guide To The Future Of Web Design
- SitePoint JQuery - Novice To Ninja
- Hacking Exposed Web Applications
- The Web Application Hackers Handbook - Finding And Exploiting Security Flaws
- Object-Oriented Software Construction
- Design Patterns: Elements of Reusable Object-Oriented Software
- The Pragmatic Programmer - From Journeyman To Master
Forget to mention C Programming Proverbs and Quick Reference by Ron Wodaski in my original list. Picked this up for the "Quick Reference" aspect in about '95. Kept it for the "Programming Proverbs" aspect. Priceless, ageless wisdom and wit along the lines of The Pragmatic Programmer.