This document discusses stock management, including maintaining adequate but not excessive stock levels to avoid stockouts while minimizing storage costs. It identifies key objectives of stock management as maintaining adequate stock levels, avoiding excess stock, and informing procurement decisions. Important factors that affect stock levels include storage space, cash availability, storage costs, risk of obsolescence, and delivery delays. Common methods for controlling stock levels mentioned are just-in-time, economic order quantity, first-in first-out, minimum levels, and stock reviews. The document also addresses frame and lens management for eyeglasses.