This conclusion presents some closing thoughts on the key concepts discussed in the preceding chapters of this book. The book examines the problem of visual pollution in historic city centres focusing on the damage caused to the visual quality of these places by shop fronts and window displays. It argues that user perception and evaluation of commercial and historic city centres are relevant indicators of the performance of commercial signage approaches applied in these places. The book discusses a general commercial signage approach could recommend that physical aspects of new commercial signs such as size, shape, proportion, colour, fonts of texts, materials, relationship with surrounding areas and between signage and building form, be described and illustrated on planning applications. It highlights that marketing the city and urban tourism strategies should influence the design and control of commercial signage with particular focus on the preservation of historic heritage.