What is the radical of the album?

hey

Book [pinyin] [cè]

[Interpretation] 1. In ancient times, bamboo slips strung together now refer to decorative paper books: commemorative ~. Flower name ~ painting ~. 2. Quantifiers refer to books: I ~ books. 3. Documents or knighthood letters of ancient emperors offering sacrifices to the gods of heaven and earth: ~ Wen (one of the imperial books such as style name, book life and book life). Short for "Ben"). ~ life. ~ seal.