Brian Wampler, of Wampler Pedals, shares significant insight in this fun and quite useful resource.
Electronic Projects for Musicians
This book is a bit old-school, and is outdated in places, but it is what a lot of people started with, and the advice within is still good.
Make – Analog Synthesizers
For those of you who have gotten into analog synthesis by way of the vast world of guitar pedals, this book will serve as a useful introduction to building your [ … ]
Handmade Electronic Music – The Art of Hardware Hacking
This one is for those who are wanting to venture beyond the realm of pedals, and into the broader field of electronics and circuit building. Good for the beginner.