GENERAL ORGANIC CHEMISTRY (GOC)
                               |
         ┌─────────────────────┼─────────────────────┐
         │                     │                     │
   HYBRIDIZATION          NOMENCLATURE           ISOMERISM
         │                     │                     │
    ┌────┤               ┌─────┤              ┌──────┤
    │ sp3│               │Longest chain│       │Structural│
    │109.5°│             │Lowest locant│      │  chain   │
    │ sp2│               │Suffix/prefix│       │ position │
    │120° │              │Priority group│     │fn. group │
    │ sp  │              └─────────────        │metamers  │
    │180° │                                   │Stereo    │
    │%s-char│                                 │ E/Z      │
    └─────┘                                   │ Optical  │
                                              │ Meso     │
                                              └──────────┘
         │                     │
   ELECTRONIC EFFECTS    INTERMEDIATES & MECHANISMS
         │                     │
    ┌────┤              ┌───────┤
    │Inductive│          │Carbocation│
    │ +I alkyl│          │3°>2°>1°>0│
    │ -I halo │          │sp2, empty p│
    │Mesomeric│          │+I + hyperconj│
    │ +M: OH,NH2│        │               │
    │ -M: NO2,CHO│       │Carbanion      │
    │Hyperconj│          │0>1°>2°>3°(stab)│
    │ C-H sigma│          │sp3, lone pair │
    │ alpha-H │          │-I/-M stabilize│
    │ no-bond res│        │               │
    └─────────┘          │Free Radical   │
                          │3°>2°>1°>CH3• │
                          │Homolytic fission│
                          │UV/heat         │
                          └───────────────┘

Central Principle: All concepts in GOC trace back to electron availability and distribution. Where electrons go determines stability, and stability determines what reactions occur and what products form.