Dr E. L. J. Leeuwenberg is Emeritus Associate Professor at the Donders Institute for Brain, Cognition and Behaviour at Radboud University Nijmegen, The Netherlands. Peter A. van der Helm received his Bachelor's degree in Fundamental Mathematics (1979) and Master's degree in Numerical Mathematics (1981, Cum Laude) from the Department of Applied Mathematics at the University of Twente, and his PhD in Social Sciences (1988, Cum Laude) from the Department of Cognitive Psychology at Radboud University Nijmegen. He has been a Fellow of both the Netherlands Organisation for Scientific Research and the Royal Netherlands Academy of Arts and Sciences. He continued his research as Assistant Professor at the Donders Institute for Brain, Cognition and Behaviour at Radboud University Nijmegen, and is now Visiting Professor at the Laboratory of Experimental Psychology, University of Leuven. His research on human vision is pre-eminently multidisciplinary and resulted in theoretical and empirical articles which have been published in leading journals. His broad interest is also reflected in his activities to enhance public awareness of the plight of West-Malaysian indigenous people, called Orang Asli.
'Whether you are familiar with Structural Information Theory or not, you will enjoy this systematic presentation by Emanuel Leeuwenberg, its original proponent, and Peter van der Helm, its main formal developer. Through twelve chapters, including a coding manual, they distil order out of perception and cognition, like the demons invoked in the introduction. SIT provides a powerful language for evaluating how strongly the mind strives for simplicity; the book provides an optimal context for evaluating the strength of SIT.' Walter Gerbino, University of Trieste 'Leeuwenberg and van der Helm have assembled the definitive statement on their influential theory of the coding of visual forms. SIT is the most thorough system available for capturing the essence of a structure's simplicity, so this volume will be required reading for those interested in this far-reaching and quintessentially Gestalt concept.' James Pomerantz, Rice University