It still appears that if a type of cryptocurrency is to become significant it is most likely to be a digital version of an existing currency issued by a central bank.

Ongoing investigation is required, to further uncover the limits, shifts, and interre­lationships between contemporary forms of governance by, with, and of blockchains.

Jennifer L. Hesterman’s latest book straddles the line between a training and explanatory text, providing a welcome approach to understanding the growing threat of violent non-state actors.