This book celebrates Patrick Abercrombie and J. H. Forshaw’s renowned ‘Potato Plan’ and assesses its potential as an analytical tool for contemporary metropolitan territories. Originally drawn in 1943 as part of the County of London Plan, Abercrombie’s ‘Social and Functional Analysis’ poetically illustrates the city as an agglomeration of distinct communities, clusters, and centralities. The Potato Plan Collection comprises 40 Potato Plans from all around the globe, each being a reinterpretation of the original by local architects, urban designers and scholars. As a whole, the collection offers a new perspective on the structure of regional configurations in the urban age.