"WOPPLOT 86 - Workshop on Parallel Processing: Logic, " "Organization and Technology" - gathered together experts from various fields for a broad overview of current trends in parallel processing. There are contributions from logic (e.g., the connection between time and logic, or non-monotonic reasoning); from organizational structure theory (of great importance for pyramid architecture) and structure representation; from intrinsic parallelism and problem classification; from developments in future technologies (3-D Silicon technology, molecular electronics); and from various applications (pattern storage in adaptive memories, simulation of physical systems). The proceedings show clearly that progress in parallel processing is an interdisciplinary goal; they present a cross section of the state of the art as well as of future trends. Furthermore, some contributions (in particular, those from logic and organization) deserve a broader interest also outside the field of parallel processing.