Humane-scale, eco-logical, urban forms and functions emerge over millennia; epitomised in European central cities from the North to the South and West to East, irrespective of climate and culture. These timeless-design cities are renowned as eminently liveable; but all cities are thermally massive sinks and radiators - urban-climate disruptors, global-climate-change agents. Fortuitously, in the timeless form, moderator potentials for urban cooling are in-built. The “Ecology of the Timeless People, Place & Planet Trilogy” elaborates these recurrent habitable and sustainable elements. Book 1: ‘Emergence’ - unfolds the historical and cultural evolution of timeless cities, expounds conceptual and ideological dimensions, emphatically 'what we think we are' - archetypal ingenuity is future-perfect too. Book 2: ‘Epitome’ - elaborates humanistic and urban-climate-cooling principles-in-practice embodied in the timeless-design of contemporary European cities. Book 3: ‘Dialectics’ - evaluates the walkable, coincident/mixed-use, interactive, cooler timeless city against thermally-excessive modernista high-rise canyon, segregated, dehumanising, car-prioritising cities. The inter-disciplinary past-present-future approach will captivate creative intellects. The wealth of exclusive imagery will delight flâneurs and edify urbanists.