Based on the best-selling book 25 Bridge Conventions You Should Know, "part 2: More Complicated" includes the following conventions:Chapter 9: Jacoby 2NT forcing major raiseChapter 10: Splinter bidsChapter 11: Cuebid raisesChapter 12: BalancingChapter 13: Help suit game triesChapter 14: Control-showing cuebidsChapter 15: Grand slam forceChapter 16: Michaels cuebids and Unusual NTChapter 17: Landy 2♣ over opponents 1NTFor the remaining conventions, look for these titles:25 Bridge Conventions You Should Know - Part 1: Learn These First25 Bridge Conventions You Should Know - Part 3: Sophisticated Stuff