He has published several best selling books on horoscopy and divination in Japan and has appeared regularly on Fuji Television.
In 1989 he began writing "The Evening Sky", a monthly New Age and cultural astronomy feature syndicated to local newspapers, schools, colleges, universities, and released onto the Packet Switched Radio Network.
The 13 Signs of the Zodiac was published in Japan in 1996 in a translation by radio host Mizui Hisami (水井久美), and the first edition sold out within days.
Throughout 1996 Berg appeared each Monday on Fuji Television's Big Today programme networked nationally to an audience of nine million.
[1] During 1996–97 Berg wrote for major Japanese magazines and produced a weekly column in the broadsheet newspaper Sankei that he continues to write.