A reference book listing names and details of people in a specific field, such as 紳士名鑑 (who's who) or 選手名鑑 (player directory).
I bought this year's professional baseball player directory.
His name appears in the company directory.
signature specimen; signature sample
Compound of 名 (name) and 鑑 (model, reference). The kanji 鑑 originally means 'mirror' or 'pattern', suggesting a book that reflects or records notable names.