史蒂芬• 阿若优（Stephen Arroyo），天秤座作家、占星师，1946年出生于美国堪萨斯城。阿若优侧重心理占星，已撰写7本心理占星书籍，有的书已经被翻译成20种语言。其理论以古老的地、水、火、风四元素为基础，强调太阳系的能量对个体的影响。阿若优曾获得英国占星学会占星奖、加拿大占星兄弟会国际太阳奖、美国占星代表大会雷古勒斯奖。阿若优在中国出版的《生命的轨迹》与《生命四元素》是广受好评的占星书籍。

Using a new language of energy based on the ancient “four elements” and in harmony with that used by the more advanced healing arts, renowned author Stephen Arroyo here explores how astrology as a language of energy can be astoundingly accurate and useful in illuminating individuals’ energy exchange in all close relationships. The preface, author’s note, introduction, and early chapters of Person-to-Person Astrology lay the groundwork for serious consideration of astrology as a significant discipline. The following chapters detail the influence of the four elements—Fire, Earth, Water, Air—on the 12 signs, with a particular emphasis on the rising sign (Ascendant). The author shows readers how to experiment by comparing birth charts, and explains, through detailed descriptions, people’s psychological motivations and needs based on the positions of their Moon, Venus, and Mars. Appendices include astrological definitions, keywords, and sign tables that allow readers quick access to the basics. Written in the author’s trademark clear, accessible style, Person-to-Person Astrology presents a new approach to finding fulfillment in any kind of relationship.