Pin-Up Girls Coloring Book Pin-up Girls are pretty girls who follow the old-fashioned and charming "Pin-up model" or "pin-up" (plural: "pin-ups"). "A pin-up model is also known as a model whose pictures are popular because they are mass-produced. Pin-up models can be actresses, glamour models, or fashion models. A pin-up is a picture of a pretty woman on a poster, often with very little clothing on. Let's get out the crayons and start coloring. This wonderful book is a great gift for adults who love art and has beautiful pictures to color. It will give you hours of fun and inspiration. Both men and women can read this book. ONE-SIDED PRINTING: Each coloring page is on a separate sheet, so there's no need to worry about the colors bleeding through. You can use crayons, gel pens, markers, or colored pencils to color this picture. SIZE: The book is 8.5 by 11 inches and has good-quality pages. With a soft, glossy cover, the large size makes it easy to color.