Idea of Ratings Icon
It's a logo representing an upwards rating trend. There are two "pages", stacked one above the other, with the bottom sheet stacked slightly to the right and under the top sheet, with a an arrow pointing up and to the right, with a small downward trend in the middle of the top sheet.
This Ratings 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 6,200 icons, all in the same style and quality.