colleagues gathered in State College on several occasions for LeiboFest celebrations of science, friendship, and mentorship. The book “Visual Perception: The Influence of H.W. Leibowitz” was written by his students and close colleagues in 2002; the book contains pearls of wisdom that continue to prove useful. In general, Leibowitz enjoyed bringing into the laboratory the visual challenges that are routinely faced by people in highly demanding situations. Leibowitz also became an avid runner; he was 50 when he completed the first of his 15 marathons. You can read more about Hersh from his family, friends, colleagues and students on posterous and Facebook. Research Leibowitz's research investigated basic issues of visual psychophysics, perception of size, distance & motion, peripheral vision and oculomotor functioning. He also studied problems of aviation, traffic safety, motion sickness, postural instability (especially during stair descent), and the effects of stress on perception. Indeed, one of the striking characteristics of Leibowitz's research was his symbiotic view of “basic” and “applied” science. In the early 1970s, for example, Leibowitz's lab developed the laser optometer and used it to advance our basic understanding of the eyes’ focusing behavior (visual accommodation); these “basic” experiments simultaneously addressed real-world difficulties such as night myopia (Leibowitz & Owens, 1978) and visual fatigue (Tyrrell & Leibowitz, 1990). He also connected advances in visual psychophysics and neuroscience with a wide range of matters in health science, national defense, child development, and transportation safety. He proposed that the hazards of night driving, for example, can be better understood through the neurological concept of two visual systems, explaining drivers’ over-confidence at night as resulting from sustained efficiency of visual guidance combined with selective degradation of focal recognition abilities (Leibowitz, Shupert & Post, 1985). A defining characteristic of Leibowitz's approach to science was his enthusiasm for cultivating the development of younger scientists. He encouraged his graduate students to indulge their curiosity (“study what bugs you!”), while always insisting on attention to his favorite question “Why is that important?” Leibowitz loved inter-disciplinary collaboration and he built productive friendships with colleagues in fields ranging from anthropology to zoology, including athletics, biomechanics, health science, law, physiology, and physics. Accomplishments Author Leibowitz is the author of more than 250 articles in scholarly publications, in addition to a book, "Visual Perception" (1965). In 2002, the book "Visual Perception: The Influence of Herschel W. Leibowitz" was written by several of his former students and published