12. Describe and show the necessary index cards for numerical, alphabetical, geographical, and subject indexing.
13. Suggest conditions which would make each of these methods advisable.
14. Which method do you consider best for the average office?
15. What special suggestions can you make relative to filing correspondence of salesmen, branch offices, and customers from whom a large number of communications are received?
16. Discuss the filing of orders and invoices.
17. How would you file documents? Credit reports?
18. To provide suitable indexing, how many guides should be used for a file containing 1500 folders?
19. What provision should be made for transferring correspondence?
20. What are the special advantages of sectional filing cabinets?