The Basman-Sale Variation is a relatively unexplored weapon for Black in the very popular Sicilian Defence. Its advantages are clear: it is surprising, aggressive and easy to learn.
Ukrainian International Master Valeri Bronznik lives and works in Germany. He has written a number of highly acclaimed books, such as 'Techniques of Positional Play'. Steve Giddins is a FIDE Master and a former editor of British Chess Magazine. He's the author of several outstanding books and is well known for his clarity and no-nonsense advice.