This is a picture of a small planner that is closed. On the front, it has a small square in the bottom right hand corner. There are two small rings at the top that hold it together.
This Planner icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 5,700 icons, all in the same style and quality.