1. The document discusses various methods of classifying and categorizing costs for manufacturing businesses, including direct vs indirect costs, product vs period costs, and classifications of different types of overhead costs.
2. Key cost categories discussed include direct materials, direct labor, indirect materials, indirect labor, prime costs, conversion costs, administration costs, selling costs, distribution costs, and finance costs.
3. The document also provides an example cost sheet format that categorizes costs and calculates key metrics like cost of goods sold.