The purpose of this book is to explain in detail the principles of draping fabric on the dress form, the principles of flat pattern designing from master pattern blocks, and the dependence of successful flat pattern making on an understanding of draping. We have devoted the entire book to the presentation of these two systems in order to show that a facility in both frees the designer to carry out any original costume with ease and confidence. This book should serve as a practical reference for college and high school students alike who need help with problems in pattern making as well as with alternation of patterns for both design and fit.