Lecture for option trader

Derivatives - Options & Futures: Interactive Brokers.
Practical Guide to Trading: Interactive Brokers.
Trading Strategies in Emerging Markets: Indian School of Business.
Financial Engineering and Risk Management: Columbia University.

If you think the stock price will move up: buy a call option, sell a put option. If you think the stock price will stay stable: sell a call option or sell a put option. If you think the stock price will go down: buy a put option, sell a call option.