Japanese Libraries
From BOOK STORE WIKI
Mega Libraries
National Diet Library Tokyo 6.2 million http://www.ndl.go.jp/
Tsukuba Univ. Library 2.4 million
Keio Univ. Mita Library 2.3 million
Waseda Univ. Central Library 2.2 million
Osaka Univ. Central Library 2.2 million
Osaka Municipal Univ. Central info Center 2.1 million
Hiroshima Univ. Central Library 2 million
Kansai Univ. General Library 1.8 million
National Diet Library Kansai 1.7 million
Hitotsubashi Univ. Library 1.7 million
Ohter famous Public and University Libraries
Tokyo Municipal Library 1.5 million http://www.library.metro.tokyo.jp/
Yokohama Municipal Library 1.3 million
Tokyo Univ. Generarl Library 1.2 million
Tohoku Univ. Library 1.1 million