Investing in Japan: an introduction to Japanese real estate business and practices offers a great deal of information for non-Japanese investors, particularly those involved in J-REITs and buying office buildings. The book covers taxes, appraisals, zoning and leasing, among other topics.
If you are looking for help buying a home, a recreational property or an income property, you will find some useful information in this book. But Investing in Japan is not written for individual buyers or small investors.
I would have given Investing in Japan four stars, but it doesn't have an index.