This icon is a part of a collection of Zwrot książki flat icons produced by Icons8. Icons follow the guidelines of iOS, Windows, and Android and are designed by a single designer, guaranteeing the consistent quality. Both PNG and vector are available.
The icon is shaped like a square with a rounded top left corner and two pointed corners located at the top and bottom right. The bottom left corner curves off to form a long oval shapes that runs the whole bottom of the square but doesn't close on the right side.