The diary is spiral-bound and acid-free, with specially designed pages that can be removed from the spine for easy use. Stack different removed pages to create paint swatch cards for color theory! Once completely dry, you can reinsert the pages into the diary. Each page will remain protected by the glassine interleaving sheets, which prevent your color charts from sticking together. Another bonus is the ability to pull out an individual color chart when you need to refer back to particular colors. Each sheet is 9x12 inches from the perforated edge, with ample room for notes and descriptions. The top of each color chart has a line for writing the paint brand, date, your name, or an assignment title if it's for a class. The diary page layout gives five rows of 8 rectangles, separated by two lines for notes and labeling. Each rectangle swatch box measures 1" x 1.5" and has a bold black horizontal line halfway from the top. This deliberate line is there to show transparency or separate half-tones for each color. Creating a color diary collection provides you with intimate knowledge of how each color performs, from a glaze to a mass tone. As a painter, you know how valuable swatch and color mixing Information is. Think how much easier it will be to plan your paintings with all that critical Information in an organized format! The Painter's Color Diary is exclusive to Jerry's Artarama and is essential for every painter seeking to improve their color skills. We recommend this color diary to any artist who wants to enhance their understanding of color, mixing, tinting, and shading.