Book AI is a tool that automates bookkeeping and accounting tasks such as fixing uncategorized transactions and auto-categorizing them, with an 80% faster transaction categorization rate. It includes an AI assistant that provides expert reconciliation suggestions and improves client communication and collaboration through two-way integrations with Xero, QBO, and QBD. The tool also features an invoice and receipt OCR to extract data in real-time, and a book chrome extension for reconciling and categorizing transactions in bulk. It has audit insights for getting discrepancy insights directly from QuickBooks or Xero.