An introduction to the invisible. <br><br> This updated edition teaches readers to develop their psychic abilities-from trusting intuition to developing telepathy and psychic healing powers. <br><br> ? The latest information on psychic phenomena and altered states of consciousness<br> ? Offers a hands-on approach, with many new tests, quizzes, and exercises<br> ? A July 2001 Gallup poll revealed that 54% of Americans believe in psychic or spiritual healing; 50% believe in ESP; 28% believe in astrology; and 32% believe in the mind's power to know the past and predict the future