Following up on the Guide to Morphosyntax-Phonology Interface Theories (2011), written from a theory-neutral point of view, this book lays out the author’s approach to the representational side of the interface. The main insight is that diacritics such as hash-marks or prosodic constituents do not qualify in a modular environment. The alternative is that only syllabic space, i.e. CV units, can be carriers of morpho-syntactic information. This idea is worked out in detailed case studies of a number of languages in the framework of CVCV (or strict CV), which makes the book the 2nd volume of A Lateral Theory of Phonology (2004).