Landscape and Visual Impact Assessment (LVIA) can be key to planning decisions by identifying the effects of new developments on views and on the landscape itself. This fully revised edition of the industry standard work on LVIA presents an authoritative statement of the principles of assessment. Offering detailed advice on the process of assessing the landscape and visual effects of developments and their significance, it also includes a new expanded chapter on cumulative effects and updated guidance on presentation. Written by professionals for professionals, the third edition of this widely respected text provides an essential tool for landscape practitioners, developers, legal advisors and decision-makers.