Loretta Lees & Tom Slater 
Gentrification [PDF ebook] 

This first textbook on the topic of gentrification is written for upper-level undergraduates in geography, sociology, and planning. The gentrification of urban areas has accelerated across the globe to become a central engine of urban development, and it is a topic that has attracted a great deal of interest in both academia and the popular press. Gentrification presents major theoretical ideas and concepts with case studies, and summaries of the ideas in the book as well as offering ideas for future research.