The Modernized Benko Gambit, Milos Perunovic, Thinkers Publishing

The Benk Gambit is the ideal way to fight and seize the initiative as black. Grandmaster Perunovic reviseted all the modern lines and provided unbiased coverage of the more recent ideas, the most important being the delay of the recapture on a6. He found and tested in practical play, many new but still typical Benko manoeuvres. If you wanna surprise the d4 player, this book and opening will be your perfect guide.