Spellbook is an AI contract review and drafting tool trained specifically on commercial contracts and legal frameworks. It integrates directly into Microsoft Word and reviews contracts in the same interface where lawyers already work — flagging aggressive clauses, suggesting market-standard alternatives, and drafting new provisions from plain English instructions. Law firms and in-house legal teams use Spellbook to dramatically accelerate contract review cycles, negotiate better terms, and reduce reliance on expensive outside counsel for routine contract work.