Theory

Creativity: Flow & the Psychology of Discovery & Invention
Mihaly Csikszentmihalyi

The Elements of Typographic Style
Robert Bringhurst

Killer Brands: Create & Market a Brand That Will Annihilate the Competition
Frank Lane

Inspirability: 40 Top Designers Speak Out About What Inspires
Pash (Matt Pashkow)

A Designer's Research Manual: Succeed in Design by Knowing Your Clients and What They Really Need
Jennifer Visocky O'Grady, Ken O'Grady

Why Your World Is About to Get a Whole Lot Smaller
Jeff Rubin

Design

Art Direction & Editorial Design
by Yolanda Zappaterra

The Chicago Manual of Style: The Essential Guide for Writers, Editors, and Publishers (15th edition)

Color Design Workbook: A Real-World Guide to Using Color in Graphic Design
Adams Morioka & Terry Stone

Influences: A Lexicon of Contemporary Graphic Design
Anja Lutz & Anna Gerber

Meggs' History of Graphic Design
Philip B. Meggs, Alston W. Purvis

Thinking With Type: A Critical Guide for Designers, Writers, Editors, and Students
Ellen Lupton

Primer of Visual Literacy
By Donis A. Dondis

Massive Change
Bruce Mau, Institute without Boundaries

Creation

Architecture for Art: American Art Museums, 1938-2008

Package Design (Daab)

Punk House: Interiors in Anarchy

Best Practice

Tuned In: Uncover the Extraordinary Opportunities That Lead to Business Breakthroughs
Craig Stull, Phil Myers & David Meerman Scott

The Art of The Start: The Time-Tested, Battle-Hardened Guide for Anyone Starting Anything
Guy Kawasaki

The New Rules of Marketing and PR: How to Use News Releases, Blogs, Podcasting, Viral Marketing and Online Media to Reach Buyers Directly
David Meerman Scott

Magazines

Design Edge Canada

Blogs

Freelance Switch

Design Porn