The budget book is the comprehensive document containing all details of a municipality's proposed or approved budget. It typically includes an executive summary, departmental budgets, capital plans, revenue projections, staffing levels, performance measures, and supporting schedules. Budget books can run hundreds of pages for larger municipalities. While detailed technical documents, they serve transparency by making complete financial information available to the public. Many municipalities also produce condensed budget summaries for citizens who want overview information without the full technical detail. Budget books are increasingly available online, improving public access to government financial information.