The Thousandth Thumbnail is a visual art book for illustrators that explores the dynamic realm of concept development through a wide variety of thumbnails and studies. The book provides examples of shape, silhouette, light and shadow, positive and negative, line, and line-in-perspective thumbnails. Select thumbnails and studies are developed into final compositions, leading the viewer on a journey from concept development to composition completion. Covering a range of media from graphite and ballpoint pen to digital, the initial studies breathe to life as illustrations.