The "Sketchbook of Loish" by Lois van Baarle is a rare find for art enthusiasts, showcasing the artist's work in progress in a hardcover format. Published by 3dtotal in the United Kingdom in 2018, this book offers a unique glimpse into the creative mind of Loish, with a focus on art and culture. The slipcover adds to the exclusivity of this limited edition publication, making it a valuable addition to any art book collection.