Common sizes include 8.5 × 11 inches (letter), 7 × 10 inches, and 6 × 8.5 inches. Some listings also show the same sizes expressed as overall dimensions like 11.0 × 8.5 inches.
Many blank paperbacks use plain (unruled) pages, often described as "Plain Paper" or "No Rule." Some list white bond paper for the interior, and a few products include preprinted internal pages or templates.
Many are aimed at children (examples list suggested ages like 5–12), though some are suitable for all ages. Common uses include drawing, storytelling, journaling, and classroom activities.
Some blank books include specialized internal layouts such as comic-panel grids with multiple panel arrangements and recipe-template spreads that dedicate two pages per recipe.
Some listings state the pages accept a wide range of media — pen, pencil, crayon, marker, paint, and glue — and note the pages are white bond paper. Acceptance can vary by product, so check a specific listing for media recommendations.