There are 1 book by Hiroshi Okayama on BookOrb. A strong starting point is Senmonsei no seijigaku (2012). The bibliography below is in publication order, with series grouped in reading order.
Standalone books
Frequently asked questions
How many books has Hiroshi Okayama written?
BookOrb lists 1 book by Hiroshi Okayama.
Where should I start with Hiroshi Okayama?
A good starting point is Senmonsei no seijigaku (2012).
What is the Hiroshi Okayama books in order list?
In publication order: 1. Senmonsei no seijigaku (2012).