In 2010, the Internal Revenue Service launched an investigation, reportedly investigating whether funds were directed to the personal enrichment of the Berg family, and subpoenaed financial records of the organization and two affiliated charities connected to Madonna. The centre called the allegations "merit-less", and said it "intends to defend the case vigorously". Publications of Berg and the Research Centre of Kabbalah Philip S. Berg, The Wheels of a Soul. Research Centre of Kabbalah, 1984. Philip S. Berg, Astrology, the Star Connection: The Science of Judaic Astrology. Research Centre of Kabbalah, 1987. Philip S. Berg, Kabbalah for the Layman, Vol. I. Research Centre of Kabbalah, 1981. Philip S. Berg, Kabbalah for the Layman, Vol. II. Research Centre of Kabbalah, 1988. Philip S. Berg, Kabbalah for the Layman, Vol. III. Research Centre of Kabbalah, 1988. Philip S. Berg, Kabbalistic Astrology Made Easy. Research Centre of Kabbalah, 1999. Rav P. S. Berg, Kabbalistic Astrology: And the Meaning of Our Lives. Kabbalah Publishing, 2006. Philip S. Berg, Power of Aleph Beth, Volume 1. Research Centre of Kabbalah, 1988. Philip S. Berg, Power of Aleph Beth, Volume 2. Research Centre of Kabbalah, 1988. Philip S. Berg, Time Zones. Research Centre of Kabbalah, 1990. Yehuda L. Ashlag, Compiled and edited by Philip S. Berg, An Entrance to The Zohar. Research Centre of Kabbalah, 1974. Yehuda Ashlag, Compiled and edited by Philip S. Berg, An Entrance to The Tree of Life. Research Centre of Kabbalah, 1977. Philip S. Berg, The Kabbalah Connection. Research Centre of Kabbalah, 1983. Yehuda L. Ashlag, Translated by Rabbi Levi I. Krakovsky, Ten Luminous Emanations, Volume 1. Research Centre of Kabbalah, 1969. Yehuda L. Ashlag, Compiled and edited by Philip S. Berg, Ten Luminous Emanations, Volume 2. Research Centre of Kabbalah, 1973. Rabbi Levi I. Krakovsky, The Light of Redemption. Research Centre of Kabbalah, 1970. Rabbi Moses C. Luzzatto, General Principles of The Kabbalah. Research Centre of Kabbalah, 1970. See also Yehuda Berg Notes References Daphne Merkin, In Search of the Skeptical, Hopeful, Mystical Jew That Could Be Me, New York Times Magazine, April 13, 2008 Tamara Ikenberg, Madonna, et al. have watered down Jewish mysticism, scholars charge Louisville Courier-Journal, August 26, 2004 David Rowan, Chief Rabbi sounds alarm on mystical Kabbalah group The Times, April 3, 2004 Robert Eshman, L.A.'s Kabbalah Learning Center seems to attract many searching Jews, but criticism of it is widespread The Jewish Journal, February 14, 1997 Aynat