Pieced Borders: The Complete Resource has 200 of the best border patterns, most in multiple sizes. It also has 12 complete quilt patterns from two of America's foremost quilt designers. You'll find full-size templates, rotary cutting instructions and yardage charts.
Pieced Borders is more than just border patterns. It's a wonderful reference volume as well. Sample chapters include border Design Basics, Keys to Border Fit, Ideas for Custom Borders, Medallion Quilts & Round Robins, Border Construction, and Quiltmaking Shortcuts.