The Semi-Slav is one of the most popular chess openings that Black can play against 1.d4. The Semi-Slav is both sound and ambitious, which makes it a favorite of the elite. This book provides expert guidance on how to play this exciting variation. The author clearly explains which lines he recommends for Black and even offers a choice of replies against the main lines.
It's good but lacks some explanations at times. Overall I've implemented this opening in my repertoire quite a lot and it's hard for opponents to beat. I have a good record with it.