Investing in gold can be done through physical gold bars, coins, or jewelry. Exchange-traded funds (ETFs) offer a convenient way to invest in gold without the need for physical possession. Gold mining stocks are another option, providing exposure to the gold market through companies involved in the mining industry. Gold futures and options are more complex investment vehicles that require a good understanding of the market. Gold mutual funds pool investors' money to invest in various gold-related assets. Gold certificates are paper or electronic records of gold ownership, usually held by a financial institution. Each investment avenue has its own risks and potential rewards.