Tan leather contact book with handwritten numbers

I lost my tan leather contact book yesterday afternoon around 3pm outside the Stockton Main Library on El Dorado Street. It's a pocket-sized notebook, about 3x4 inches, with a worn tan cover and a green ribbon bookmark sticking out. Inside are handwritten phone numbers and addresses in blue ink, plus a tiny doodle of a star on the first page. It has sentimental value because it holds my grandma's emergency numbers and a list of close friends I only keep in that notebook. If someone found it, I’d really appreciate getting it back so I can reach my mom and aunt who rely on those contacts.