The cover of a book titled 'Selected Works of Yakov Borisovich Zeldovich, Volume II' with a yellow and blue color scheme. The title is in a bold font at the top, and the subtitle 'Saturated, September, and October 2013, and any other month that comes after' is in a smaller font below. The cover features a gradient from yellow at the bottom to blue at the top, with a white border around the edges.