Spanning more than fifty years of collecting, his library held somewhere
between five and six thousand volumes. His collection covered such fields
as the history of Japan and China, Chinese philosophy, novels, legends,
poetry, storybooks, and fables as well as books in medicine, Buddhist scriptures,
and fortune telling.
From about 1839, he began selling his collection. His books were passed
along to his lifelong friends, Kimura Mokuro, chief retainer of the Takamatsu
clan, and the wealthy Tonomura Shosai of Ise, Matsuzaka, and the prosperous merchant
Ozu Keiso. Many of the volumes from the collection that were sold to Ozu Keiso
are now in Tenri Central Library, and the part of the collection received by Kimura
Mokuro is held at the Matsudaira Koekikai in Kagawa.
The National Diet Library holds such manuscripts by Bakin as volumes
1 to 6 of the ninth series of "Nanso Satomi Hakkenden", "Kagami
Ike Ukinano Utsushie", and "Nochi no Tame no Ki" with Bakin's collations
and handwritten comments. The library also holds 40 letters written by Bakin to
Tonomura Shosai and Ozu Keiso.