Option trading can be a complex and challenging endeavor, so it's important to have a solid understanding of the fundamentals before getting started. Here are a few more key concepts to consider:

1. Option Payoff: The payoff of an option is the difference between the market price of the underlying asset and the strike price, multiplied by the number of shares represented by the option contract. The payoff diagram is a graph that illustrates the relationship between the option's intrinsic value and the underlying asset's price.

2. Breakeven Point: The breakeven point is the price of the underlying asset at which an option trade will neither make a profit nor a loss. It is calculated as the strike price plus the option premium for a call option and strike price minus the option premium for a put option.

3. Implied Volatility: Implied volatility is the volatility of an underlying asset that is implied by the current market price of the options for that asset. It can be used to estimate the likelihood of a given price movement for the underlying asset, and can also help to determine the appropriate strike price for an option.

4. Leverage: Options provide leverage, which means that an option contract controls a much larger number of shares of the underlying asset than the option premium would suggest. This gives a much higher potential of gain or loss in a small investment.

5. Spreads and Combination : Combining different options or options and underlying assets is the way to construct more complex trades that allows the trader to trade in different market conditions. There are different types of spreads such as horizontal spreads (buying and selling options with the same expiration date but different strike prices), vertical spreads (buying and selling options with the same strike price but different expiration dates), and diagonal spreads (buying and selling options with different expiration dates and different strike prices).

6. Hedging : Hedging is a technique that uses options to offset the risk of an investment in the underlying asset. It can help to protect against potential losses, but it can also limit the potential for gains.

7. Risk Management: As options trading involves a lot of leverage, it is important to have a risk management strategy in place. This includes not only determining how much you are willing to lose on a trade, but also diversifying your investments and considering a variety of options strategies to reduce risk and maximize potential returns.

It is important to note that option trading is complex and not always suitable for every investor, It is always good to have a good grasp of the financial markets and understand the risk involved, also seek professional advice to get familiar with the risks and benefits before investing.