What is the difference between using craftsmen and clerks in my factories?
All other factors being equal, a clerk is more efficient than a craftsman. Their exact efficiency is based on your literacy rating and is calculated as: Craftsmen: 0.5 + (literacy-ratio/2) giving a range of 0.5-1 Clerks: 1 + (literacy-ratio/2) giving a range of 1.0-1.5 In other words, at 0% literacy, clerks will be twice as efficient as craftsmen, while at 100% literacy, they will be 1.5 times as efficient. Note that you have to have at least as many craftsmen POPs working in a factory as you have clerk POPs (size of POPs doesn’t matter). Also, you can have a maximum of 2 clerks per factory level.