Bass Guitar Modes Theory {Bass Books}

Titles by Mark J. Sternal (there are DVD and book options) are probably the easiest ones to learn from.

Play In 1 Minute or Less!

Learn To Read Bass Guitar Music Easy Note Playing Section Arpeggios and Intervals 5 Songs! Including Slap, Rock and Blues Built In Bass Tuner & Metronome!

And make sure to search for more titles by Mark J. Sternal

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This would be the most comprehensive study on scales/modes/theory:

THE BASS PLAYERS GUIDE TO SCALES AND MODES
This book is a complete reference manual featuring all of the scales, modes and arpeggios used by the modern bass guitarist. The construction of each scale and mode is covered in detail and the reader is encouraged to learn the content of the scale rather than the prescribed fretboard patterns found in other books. ‘Real world’ bass grooves clearly demonstrate the sound and use of each scale. Audio files for these exercises are available as a free download from this site. This book is for bass players of all levels. 142 pages. Written in Standard Notation and TAB.

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This one is a little more out of the box, more intermediate – but real interesting:

More of a summary – and a classic reference book:

BASS FRETBOARD BASICS
All you need to know about the bass fretboard, including: scales, intervals, triads, modal patterns, and fundamentals; keys, fingerings, position playing; arpeggios, turnarounds, walking bass lines; horizontal and vertical playing; and more! For all styles of playing!

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