Despite the evolution of digital technology, coloring books still remain among the best-selling categories on Amazon, which is preferred by both adults and children for a calming and enjoyable experience. Generally, top-selling books are either of the type of mandala and mindfulness design for grown-ups or those featuring licensed characters for children and even some themes such as animals, nature, and even holiday-themed art. In most cases, their popularity depends on the simplicity of black-and-white images, quality paper, and series branding. Self-publishing authors have been able to enjoy success through publishing books under a particular category by optimizing listings and utilizing effective cover designs. Authors in Canada wishing to publish such books need not struggle by making use of the Kindle Direct Publishing Services Canada, as it makes the process easy.