City colors contribute to an integrated cultural image developed in the progress of urban civilization as a result of collective consciousness and individual self-awareness, which illustrate the outlook of a city and carry out its history. It should be covered in the urban reconstruction blueprints in an attempt to depict a city with competing characters. The City Yeast was designated by Urban Regeneration Office Taipei City in 2012 to introduce the Taipei City Colors Plan to the citizens in order to encourage public attention and action, and keep promoting the idea though this publication.