Start with high-confidence asian culture & society books, then narrow by subgenre or adjacent topics.
The Japanese
Christopher Harding
Shinto
Helen Hardacre
A Year in the Life of a Shinto Shrine
John K. Nelson
The Chrysanthemum and the Sword
Ruth Benedict
The Korean Mind
Boye Lafayette De Mente
Becoming Zimbabwean
Trishula Rachna Patel
Drawing on Tradition
Jolyon Baraka Thomas
A Beginner's Guide to Japan
Pico Iyer
Discovering Bhutan
JanetWard Schofield
China - Culture Smart!
Culture Smart!, Indre Balcikonyte-Huang
Korea - Culture Smart!
Culture Smart!, James Hoare PhD
Japan - Culture Smart!
Culture Smart!, Paul Norbury
India - Culture Smart!
Culture Smart!, Becky Stephen
Myanmar - Culture Smart!
Kyi Kyi May
Japanese Culture
Roger J. Davies
Japan the Ultimate Samurai Guide
Alexander Bennett
Letter From Japan
Marie Kondo