This textbook was created as a result of the cooperation of the School for Textile and Leather Design from Novi Pazar (Serbia) within the Erasmus+ project entitled "Putevi džinsa" (Jeans Roads), which was implemented in the period October 1, 2018 - September 30, 2019 (KA2 - Strategic partnerships for VET No: 2018-1-RS01-KA202-000435 ). This textbook is intended primarily for high school and college students, and can also be of great help to designers and modelers who are professionally involved in this industry.