The second part of Najdorf Sicilian 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 is a free continuation of the first part. In the first chapter, 240 pages are devoted to the variant 6..e6 7.f4 Qb6 (known as Poisoned Pawn). The second chapter discusses the line 6..Nbd7 (100 pages). The final third chapter contains about 150 examples to practice and their solutions. Picture 2 shows contents of the book. Lukasz Jarmula, born 1998, is Polish GM, his peak rating was 2512. Further information about the book and a sample are available at thinkerspublishing.com.