An excerpt from the textbook available here:
This textbook is designed for beginners, as well as established players and professionals. It hopes to introduce basic technical languages and exercises to those unfamiliar with these concepts. It also hopes to provide more advanced players with a variety of creative approaches to familiar rudimentary techniques, and an opportunity to fill in any gaps that have collected over the years. It will explore elements of style that go beyond dry technical exercises, and help define the bass player’s role within an ensemble by including music theory as an integral part of learning to play; a musical education rather than just an instrumental lesson. This will help to provide a clear explanation for the reasons behind each rudiment or concept. The plan is to give as thorough an overview of as much stuff as possible. Treble clef is used often, for the purpose of exposing newcomers to this clef, and encouraging them to read it. This opens up new avenues for practice material as well as a deeper comprehension of lead sheets and scores. It will expand your potential and abilities.
All of the exercises in this text are a result of my own education; from the excellent (and less than excellent) teachers I’ve had, students I’ve taught and bands I’ve worked with and my successes and failures in these roles. Some of what I have to say may work for you; it may not. But there’s only one way to find out. You need to fully explore as much as possible in order to truly know what you like and dislike. Playing bass well takes hard, repetitive work; it won’t happen overnight. You may never forget how to ride a bike, but if you don’t ride it everyday you’re not likely to be very good at it and it will make you sore when you do. Don’t give up. And don’t stop playing. You’ll get where your going if you just keep going. So enjoy the ride!