The diary is spiral-bound, acid-free and the specially designed pages can be removed from the spine to work on. 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 stay Protected by the glassine interleaving sheets that keep 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 from the perforated edge, with tons of 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 gives you intimate knowledge of how each color will perform, 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 important Information in an Organized format! The Painter's Color Diary is exclusive to Jerry's Artarama and is essential for every Painter who wants to become a better Colorist. We recommend this Color diary to any artist that wants to enhance their color, mixing, tinting, and shading comprehension.