Workman Publishing developed a "Think Happy, Be Happy" day planner for 2018 as a spinoff of the page-a-day calendars I've been working with them on for the past several years. Two of my illustrations are used in the day planner as seen below. The rest of the pages, including the cover are illustrated by other artists and the design team at Workman.

This day planner can be purchased on Amazon as well as at gift and book stores nationwide!