Berg was born Barry Parkinson in Chorley, Lancashire, England on 28 October 1947. Between 1988 and 1994 he wrote extensively for electronic repair manuals and produced course material for science education. In 1980, while studying and practising astrology Berg became acquainted with astrologer Jeff Mayo and collaborated with him on several projects while developing 13-sign astrology. 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. A monthly guest on BBC Eastern Counties and Three Counties Radio, independent Horizon and Chiltern Radio was the 'expert spokesperson' on numerous national radio and television networks. Berg published The 13 Signs of the Zodiac in 1995, which sold well in the UK. The 13 Signs of the Zodiac was published in Japan in 1996 in a translation by radio host Mizui Hisami, 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. During 1996–97 Berg wrote for major Japanese magazines and produced a weekly column in the broadsheet newspaperSankei that he continues to write. Berg has constructed 13-sign profiles for many 'A’ list Japanese celebrities and politicians. In 1995 Berg proposed a symbol for Ophiuchus which has come into comparatively widespread use in Japan. The symbol looks like a letter U with a superimposed tilde. In 2009, it was suggested for inclusion in the Unicode standard as part of an emoji extension. The symbol has been added to the Unicode Miscellaneous Symbols codepage as of version 6.0. In 2008, he published a book combining traditional 12-sign horoscopy with the concept of blood group–based personality types popularised in Japan in the 1970s by Masahiko Nomi, resulting in a system of 48 personality types. He currently practises from Mayfair, London, UK and Shibuya-ku, Tokyo, Japan. Western tropical astrology has long been detached from the constellations eponymous of the signs, due to the axial precession of the equinoxes over the centuries since the introduction of the zodiac by the Chaldeans. By contrast, in sidereal astrology the astrological signs remain attached to the constellations, while the vernal equinox has moved away from Aries over time. Sidereal astrology has traditionally only been practised in Indian Jyotisha, but it has been introduced in western astrology by Cyril Fagan in 1944. A small minority of western astrologers have since followed Fagan and used a sidereal system as in Indian tradition. The Indian tradition also uses 12 equal-sized signs; the distinction is in where the signs start. Berg breaks from historical tradition to combine sidereal astrology with the IAU's official constellation boundaries defined in 1930, creating a 13-sign system. This results in astrological signs that correspond directly to the time the Sun spends in their eponymous constellations. For example, the Sun spends forty-five days in Virgo and only six days in Scorpio. The 13th sign is Ophiuchus, where the Sun passes during the first two weeks of December. Berg argues that the movement of stars, planets, comets and asteroids through space affects the solar magnetic field; this in turn affects the geomagnetic field influencing collective and individual electro/chemical/biological systems. Human bio-resonant systems are able to tune into particular astro-resonant cycles. When constructing charts he uses dimension z in addition to the x and y coordinates which form the geometric patterns. The z co-ordinate is allocated an energy value of varying strength.
