Donna Lee Steele left a 20-year corporate career in Human Resources Management in 1994 to found Threshold Consulting and practice astrology full-time. She follows the Evolutionary Astrology method of Jeffrey Wolf Green, treating the birth chart as a record of the soul's evolutionary journey across lifetimes. Her broader studies encompass the I Ching, Numerology, Tarot, the Runes, the Kabbalah, Shamanism, Dream Analysis, Universal Symbolism, and the science of human consciousness. She offers lectures, workshops, and downloadable educational materials on Evolutionary Astrology and related subjects.