This book appears to be written more for industry insiders - it doesn't spend a ton of time to set the lay of the land, and the writing style leans utilitarian (It's a bit dry and not written by a professional writer who has spent a lot of time honing the craft of storytelling). 

It makes good points about how movements can get siloed into their area when they should broaden horizons to see how connected all social justice movements are - prison abolition and immigration go hand in hand since they use the same detention spaces and structural processes, etc. The other good point it makes is that local movements and leadership have been incredibly successful in affecting how national immigration policy and federal gov't orgs are able - or not - to act in their communities. Immigration is a fed level issue on the surface but the fights are won at the city level. 

Read for the Virtual Socialism Reading Group.