chapter 1. Introduction / Jie Jack Li -- chapter 2. Nucleophilic aliphatic substitution : S[subscript N]1 / Yu Fen, Safiyyah Forbes, and Jie Jack Li -- chapter 3. Nucleophilic aliphatic substitution : S[subscript N]2 / John W. Lippert III -- chapter 4. Electrophilic addition to alkenes / Adam M. Azman -- chapter 5. Electrophilic aromatic substition / Jie Jack Li -- chapter 6. Rearrangement and fragmentation reactions / Hannah Payne, Sharon Molnar, and Micheal Fultz.