Here's a complete free guitar scales pdf ebook, entitled "84 Guitar Scales and Arpeggios Patterns". A downloadable pdf with plenty of scales patterns, with different fingerings and fretboard positions. For each scale, you can learn a number of different shapes, depending on the zone of the fretboard you're working on. The ebook contains of course the most important scales for beginners, such as major and minor, but shows also more advanced charts such as triads arpeggios, seventh chords arpeggios, pentatonic and blues scales.
In this section you can find major scales, harmonic minor and melodic minor scales, in different shapes and fretboard positions.