A short run Digest Book series of only 6 known titles. Published by PDC this seems to be the remains of the defunct Knickerbocker Novels romance series from the late 40's and early 50's .
Novels Inc. ran these titles in 1952 and always had some superb artwork.
1 - Made For Loving - William Arthur (Neubauer)
2 - Sinner In Gingham - Gail Jordan (Peggy Gaddis)
3 - Percentage Girl - Wright Williams .
4 - Come Sin With Me - Gail Jordan (Peggy Gaddis)
5 - ?
6 - ?
7 - ?
8 - ?
9 - Stag Stripper - Gene Harvey .
10 - The Tigress - John Saxon.