Singer Sewing Reference Library Vintage Hardcovers Set of 4.

Sewing Specialty Fabrics - 1986 - pages unmarked, binding tight, shelf wear on front and back cover
Timesaving Sewing - 1987 - pages unmarked, binding tight, shelf wear on front and back cover
The Perfect Fit - 1987 - pages unmarked, binding tight, shelf wear on front and back cover
Sewing Pants That Fit - 1989 - small split on interior front cover, pages unmarked, binding tight, shelf wear on front and back cover and small scuff on front cover