Fancy Yarns by P.P Yarn Agencies provides an overview of different types of fancy yarns including their production methods and uses. Some key types are boucle, gimp and loop yarns which are made by twisting additional yarn around a core yarn. Other types include slub yarns with alternating thick and thin areas, and chenille yarns which have a soft pile bound to a core. Fancy yarns can be used for knitting, weaving, embroidery and other applications to enhance the visual appeal of fabrics and garments.