Mobile eHealth offers a very comprehensive discussion of health technologies and their effectiveness, usability, and best design practices. Expert audiences will be delighted by the depth of information presented by Mobile eHealth. Each chapter offers a topical snapshot that could be, and often has been, a book in its own right. This comprehensive collection on the issues surrounding healthcare technologies is a treasure trove of information that experts will continue to revisit. (Nicole St. Germaine-Dilts, Technical Communication, Vol. 65 (3), August, 2018)