A generally very valuable, but slightly odd, guide to, well, doing design ethnography. It's an excellent introductory text for students: it's written in down-to-earth language (albeit haphazardly edited), and designed to address the inevitable concerns of students reading ethnographic literature and coming away with no sense of what to actually *do.* I wish I'd read it my first year of grad school.
The authors constantly reiterate that their task is teaching ethnography for information-technology design, not for high-theory sociology or for critical studies. And that point's fairly made and well-defended. Generally, though, the book reads like it's written by high-functioning GamerGaters: one can here the high-pitched whine against social justice warriors behind the reasonable drone of explaining how to use a tool to aid in commercial design processes. However, the distinction between "theory" and "method" on the one hand - both bad, because scholastic and compromised by advocacy agendas - and "epistemological discipline" on the other - good because "rigor" - seems like a political agenda more than a sustainable distinction.
Still, I'd happily use this book in the classroom, while working to situate it in an ideology of anti-ideology, and of the politics of defining a task to exclude what one finds distasteful.