Bjooks has published several coffee-table books exploring musical instrument design, the history of Roland, the world of guitar pedals, and more. Its latest covers the evolution of drum machines from 1959’s Wurlitzer Side Man to modern oddities from Erica Synths. There’s only two days left to back it on Kickstarter, though. [Media: https://www.kickstarter.com/projects/bjooks/beat-gems-drum-machines-in-modern-music/]