WeinbergdistillstheessencefromvonBertalanffy'sclassicandmanagestopresentitinaveryaccessiblefashion.Thebookhasbeenoutofprintforquiteawhilesoitisgreattoseeanewedition.Themessageandinformationcontainedinhere,althoughoriginallypublishedin1975,isnowmorerelevantthanever.Weinberg