This bilingual volume in German and English is devoted to expanding the use of upper positions, introducing new bowing strokes and developing a versatile bowing technique. The new positions are first presented, in accordance with tried and tested Sassmannshaus methodology, by means of songs and exercises that the learner has already mastered, and then practiced with a wide range of duets and recital pieces in contrasting styles. Besides classical double bass literature, the volume also includes new arrangements from the string repertoire and original pieces by Boguslaw Furtok specially tailored to this tutor.