Cascading Style Sheets (CSS) By Example: Uses a fast approach to make CSS accessible to everyone.
Cascading Style Sheets - Designing for the Web [First edition]: By the authors of CSS1.
Cascading Style Sheets - Seperating Content from Presentation: By Owen Briggs, Steve Champeon, Eric Costello and Matt Patterson.
Cascading Style Sheets For Dummies: A beginners guide to CSS by Damon Dean. Author informatin and table on contents, and online purchasing.
Cascading Style Sheets:The Definitive Guide: By Eric Meyer.
CSS Cookbook: By Christopher Schmitt. Contains detailed examples and CSS code snippets. Description, errata, and online purchase.
CSS Pocket Reference: Introduces CSS and lists all CSS1 properties, plus the CSS1 pseudo-elements and pseudo-classes.
Designing CSS Web Pages: A book by Christopher Schmitt about contemporary new media design through Cascading Style Sheets (CSS), Dynamic HTML (DHTML), PNG and SVG.
Eric Meyer on CSS: Companion website, with code downloads, and ordering information. Published by New Riders.
HTML Utopia: Designing Without Tables Using CSS: Describes how to use CSS instead of tables for layout. First 4 chapters available as a download in PDF Format.
Learning CSS: Books: List of books on CSS from the W3C's CSS page.
The Zen of CSS Design: Visual Enlightenment for the Web: By Dave Shea and Molly Holzschlag. Explores techniques for using CSS to create beautiful websites.