You can't plug it in, play anything on it, or with it. But Kim Bjørn's "Push Turn Move" book is nonetheless an essential purchase for electronic musicians.
The Evermix MixBox 2 aims to make recording your DJ mixes a doddle with your iOS device. We hang one off the back of various devices and see.
A century in business is quite a milestone, and gives great material to tell a story. Thus Ortofon has a made a book to celebrate their 100 years of carts and stuff.