Aromaticity and Aromatic Compounds

Aromaticity at PGT depth: Hückel's rule and the 4n+2 electron count, what makes a compound aromatic vs anti-aromatic vs non-aromatic, benzene's structure and stability, then electrophilic aromatic substitution — the mechanism, the directing effects (ortho-para vs meta), activation and deactivation, and the classic reactions (nitration, halogenation, sulphonation, Friedel-Crafts).