[9][10] In 2017, Gerard released his first book, Attack of the 50-foot Blockchain,[11] which criticises cryptocurrency for, among other reasons, its energy cost and the high number of exchange hacks.

Parts of the book are dedicated to debunking claims made by cryptocurrency advocates; for example, he provides evidence that bitcoin has not dispensed with the malfeasance present in traditional banks and markets or helped people rise out of poverty.

[12] Martin Walker of the London School of Economics Business Review called the book "the first real, 'no holds barred', attack on the whole bitcoin/cryptocurrency/blockchain movement".

"[14] In the American Book Review, Aaron Jaffe recommended it alongside David Golumbia's Politics of Bitcoin: Software as Right-Wing Extremism.

[18] The book explores Facebook's aborted attempt to create Libra, a cryptocurrency, and discussed reactions to it from central banks.