AllVolume 24Issue: 3-4Year: 2017Table of ContentForeword: Laws of FormArticles: A Calculus of Negation in CommunicationDistinction is Sufficient: Iconic and Symbolic Perspectives on Laws of FormThe Brown-4 Indicational Calculus George Spencer-Brown as I Knew Him: A Brief Personal MemoirSystem E — A New Language that Reveals New Distinctions in Laws of Form’s Notational SpaceDiamond Bracket Forms and How to Count to TwoImaginary ValuesRe-reading Laws of Form as a Language in ChangeTowards a Phenomenology of SchematizationColumn: Virtual Logic—Cookie and Parabel Discuss Laws of FormFeatured Artist: Renate C.-Z.-Quehenberger.