Hi all, Please recommend good books for option trading. At this moment, I am a retail/individual level option trader. I am looking for good practical option trading books for my level. I have read about those option combinations, such as straddle, etc. I am not sure if they are really useful for retail-level traders? One of my current problem is: I don't know when shall I cut loss or reap profit. It's a bit different than plain stock trading. For example, yesterday my option went up 100% in one day, after I entering into the market. But I thought it should theoretically be up 200% or more, based on my beliefs, so I didn't reap profit and get out. Instead, I waited until today. Then today my option went down and is now under water. I am not sure if I should cut loss and leave the market. I really need to develop a good trading strategy and trading style. Any help? Thanks a lot!