One Color a Day: A Daily Art Practice and Visual Diary by Courtney Cerruti offers a simple, meditative watercolor practice for documenting each day of the year. Using a clean, gridded layout, readers paint one color a day and add a word or phrase reflecting a mood, moment, or observation, creating a deeply personal visual record over time. Designed to take as little as five minutes, the book includes gentle guidance on watercolor basics, encouragement for building a daily creative habit, and inspiring prompts to help set intentions and reflect throughout the year.