"This book needs to be adopted as part of the canon of the profession. It brings clear evidence to bear and articulates the conundrums we face daily in an almost matter of fact way. If you have spent any time working in a library, academic or otherwise, you will have certainly seen the slow and steady drift toward monopolisation of all the content that we lease. What is refreshing is that this is written in such a way that those outside of librarianship will be compelled by the stories that it tells. Next time a friend says 'it must be nice to read all day' lend them your dog-eared copy of this book so that they understand first-hand where the war is being fought."—Tim Ribaric, Canadian Journal of Academic Librarianship

"It is sometimes crudely assumed that whoever owns our data can control us. Sarah Lamdan's Data Cartels brings a rather more subtle perspective."—Times Literary Supplement

"This book—including the footnotes—is an engaging and insightful read. This spotlight on big data will hopefully bring these companies out of the shadows and into the public eye. Highly recommended."—R. I. Saltz, CHOICE

"Lamdan offers a timely, ambitious, and original contribution about a set of issues that are of vital importance to the study of technology, law, and society."—Anil Kalhan, Drexel University Thomas R. Kline School of Law

"Powerful and a great read! This book definitely stirs the pot."—Nicole Dyszlewski, Roger Williams University School of Law

"From scientific information to legal information to massive dossiers on each and every one of us and more, Sarah Lamdan's beautifully researched book delves into the shadowy world of big data. A fascinating read!"—Carl Malamud, Public.resource.org

"Lamdan's research is solid. Her book would be a nice addition to both large academic and legal libraries."—Michael Sawyer, Library Journal

"Having been involved in efforts to raise awareness of the impacts of data brokers over the past decade, I appreciate Lamdan's hopeful stance that it is not too late to reverse course and create a better world. Her rhetoric is powerful, her writing colourful and her critique vigorous."—Lisa Janicke Hinchliffe, Nature

"Lamdan's seminal work on the legal information market and the companies that own them is integral to how we work with these products, teach them to our students, and demo them to our patrons."—Mari Cheney, AALL Spectrum

"Lamdan's work is groundbreaking yet intimately familiar to us in the librarian profession.... Her bold approach breaks down the barrier and serves as a metaphorical lighthouse to our work. It gives us a reason to recommend her book to library advocates so that they can realize how these companies are operating in the informational capitalism age. This book should be required reading for all librarians who advocate that information is power."—Edward Junhao Lim, Journal of Business & Finance Librarianship