This document discusses the different types of working capital needed by businesses. It defines working capital as the capital required for short-term financing of current assets like cash, inventory, and receivables. Working capital is classified as either permanent/fixed or temporary/variable. Permanent working capital is the minimum level needed to operate, while temporary working capital fluctuates with seasonal or special business needs. The document also differentiates between gross working capital as total current assets and net working capital as current assets minus current liabilities.