Time Out says
This Shinjuku-dori location is the main store of renowned booksellers Kinokuniya, and its extensive selection of books, magazines, comics, stationery and much more is spread out over a total of nine floors (plus a separate building for manga, DVDs and more). It also carries numerous videos, audio-visual software and CDs. Although foreign-language books are available here as well, the Kinokuniya shop on the south side of the station (Books Kinokuniya Tokyo) has a far wider selection.
3-17-7 Shinjuku, Shinjuku-ku
|Transport:||Shinjuku Station (Yamanote, Chuo lines), east exit; (Marunouchi line), exits B7, B8; (Oedo, Shinjuku lines), exit 1|
|Opening hours:||10am-9pm daily|