A title that is dedicated to the monumental life, work and creative genius of Zdzislaw Pawlak, the originator of rough sets, who passed away in April 2006. It opens with a commemorative article that gives a brief coverage of Pawlak's works in rough set theory, molecular computing, philosophy, painting and poetry.

Commemoration.- Zdzis?aw Pawlak: Life and Work.- Regular Papers.- Rough Belief Change.- Rough Sets and Vague Concept Approximation: From Sample Approximation to Adaptive Learning.- Matching 2D Image Segments with Genetic Algorithms and Approximation Spaces.- An Efficient Algorithm for Inference in Rough Set Flow Graphs.- Intelligent Algorithms for Movie Sound Tracks Restoration.- Rough Set-Based Application to Recognition of Emotionally-Charged Animated Character’s Gestures.- Introducing a Rule Importance Measure.- Variable Precision Bayesian Rough Set Model and Its Application to Kansei Engineering.- P300 Wave Detection Based on Rough Sets.- Multimodal Classification: Case Studies.- Arrow Decision Logic for Relational Information Systems.- On Generalized Rough Fuzzy Approximation Operators.- Rough Set Approximations in Formal Concept Analysis.- Motion-Information-Based Video Retrieval System Using Rough Pre-classification.- Dissertations and Monographs.- Approximate Boolean Reasoning: Foundations and Applications in Data Mining.