The Private Eye® (5X) Looking / Thinking by Analogy: A Guide to Developing the Interdisciplinary Mind by Kerry Ruef. (The Private Eye Project, 2003, 1998,1992) 240 pages. K-16 through life. Profusely illustrated in black and white. This best-selling introduction to The Private Eye program will propel you and your students into worlds of wonder and intellectual growth. You ll discover... (read more)