This ebook on Urban Informatics focuses on cutting edge articles which detail the scientific and creative use of urban sensing, data processing and urban impact yielding methodologies. How harnessing this data-science driven layer of Urban Informatics enables the collection, analysis of vital datasets and most importantly how it impacts the urban in a tangible manner, is a vital focus of the ebook. Differences in methodologies, frameworks, hard and software, visualization techniques and computational approaches, while, approaching critical urban issues ranging from urban health and wellbeing, urban mobility, safety and security, urban energy and sustainable urban design, are thus exposed from a data-science perspective via this ebook. The ebook, is also an attempt to expose the domain of data sciences to contemporary and future urbanists, enabling them to tackle both existing and projected urgencies in dynamic urban environments.