The CD-ROM with Don's book "Calculus By and For Young People- Worksheets", in English AND Japanese.

Thank you Hiroshi for all your efforts on my behalf!!!...Don

Mr. Hiroshi Takimoto, a JUKU owner and math teacher, from Matsuyama, Japan, is completely responsible for the CD-ROM with Don's worksheet book in  Japanese and English. Mr. Takimoto had Don's worksheet book translated and had each page put in pdf files so that it can be read on a PC computer by Adobe Acrobat Reader, and did all the other work and spent his own money!, to make this CD come about. Mr. Takimoto sells it on his website .

Mr. Takimoto also found Kodansha Ltd., who published the Japanese translation, by Noriko Arai, of Don's book "Calculus By and For Young People (ages 7, yes 7 and up)" on August 20, 1998. On April 20, 2001 Kodansha also published the Japanese version of Don's third book "Changing Shapes With Matrices", co-authored by Ms. Arai.