This MS OneNote 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 4,300 icons, all in the same style and quality.
This is a computer icon for Microsoft OneNote showing an open binder with pages of writing on the inside. inside the binder there are also rectangular tabs on the right side of the pages to quickly change to a different part of the binder. On the outside of the binder is a large, bold letter 'N'.