To give you a more helpful answer, I need more information. Could you please clarify what you are looking for? For example:
* What time period are you interested in? Factory work has changed dramatically over the centuries.
* What specific aspects of factory worker life are you interested in? For example, working conditions, social life, family life, or struggles for worker rights.
* What kind of book are you looking for? Are you looking for a novel, a historical account, a sociological study, or something else?
Once I have a better understanding of your needs, I can suggest some specific books that might be helpful.