IDG Books Worldwide, Inc (Nasdaq:IDGB), and Simplicity Pattern Co announced today a licensing partnership that will bring IDGB's best-selling For Dummies brand to Simplicity Pattern Company, a celebrated leader in sewing and craft patterns and user-friendly home-sewing instruction.

Slated to premiere in stores early next year, the For Dummies pattern collection will include Craft Patterns, Home Decorating Patterns, Kids Apparel Patterns, and Accessory Patterns. The line will adopt the popular brand imagery of the distinct yellow-and-black For Dummies design, logo, icons and user-friendly format.

The success of IDGB's For Dummies brand includes numerous awards and high-profile recognition for its marketing innovations. Since the brand made its debut in 1991, there are over 85 million For Dummies books in print, and the brand is recognized worldwide for its fun approach to learning a wide range of topics, from computers and cooking to personal finance and foreign languages.

The For Dummies patterns will be available in the US, Canada, and United Kingdom. The collection will be featured in Simplicity's popular pattern catalogs, which are updated eight times a year and distributed to mass market, fabric, craft and specialty stores wherever fabrics are sold. Catalogs and designs can also be viewed online at www.simplicity.com.

About Simplicity Patterns Co., Inc.

Based in Manhattan, Simplicity Patterns Company, Inc., is one of the world's largest manufacturers of home sewing patterns and sewing instruction materials for nearly a century. In the US, Simplicity Patterns are sold through mass market and specialty channels such as Wal-Mart, JoAnn's Fabrics, Hancock Fabrics, Hobby Lobby and wherever fabrics are sold. Simplicity Pattern catalogs are updated eight times a year, keeping pace with changes in fashion, season and trends, and include patterns for women's, men's and children's apparel, uniforms, home decorating, crafts and costumes. More information about Simplicity products and its licensees is available at www.simplicity.com.

About IDG Books Worldwide

IDG Books Worldwide, Inc. (Nasdaq:IDGB - news), headquartered in Foster City, Calif., is a leading global knowledge company with a diverse portfolio of technology, consumer and general how-to content brands, computer-based learning tools, Web sites and Internet e-services. IDGB's best-selling brands include For Dummies, 3-D Visual, Bible, CliffsNotes, Frommer's Travel Guides, The Unofficial Guides, Betty Crocker's cook books, Weight Watchers and Webster's New World. IDGB is also the publisher of AOL Press, Hewlett-Packard Press, Netscape Press and Novell Press.

The company has more than 4,000 active titles, has publishing partnership agreements in more than 90 countries plus translations in 38 languages around the world. IDGB owns the Web sites www.dummies.com, www.frommers.com and www.cliffsnotes.com. More information about IDGB is available from the company's SEC filing or by visiting the company Web site at www.idgbooks.com. IDGB is a subsidiary of International Data Group, Inc., a leading global provider of information technology media, research, conferences and expositions.

This news release contains forward-looking statements that involve a number of risks and uncertainties. Among the important risk factors that could cause actual results to differ materially from those indicated by such forward-looking statements are risks associated with the timing of the new product and online releases and risks that the new products will not be successful in the market as well as risk factors detailed from time to time in the company's periodic reports and registration statements which are filed with the Securities and Exchange Commission.