This book introduces two sets of trading skills: the first set of trading skills is to meet the short-term needs of leveraged gold traders, mainly used to trade margin gold, paper gold or futures gold. The key of this technology is to grasp the rhythm of entry and exit through the price trend and level, and to obtain the success of short-term trading by looking for a trading structure with good risk-return ratio. The price has memory, which is the premise for the effective operation of this system. The second set of trading technology is to meet the needs of investing in physical gold from a long-term perspective, mainly targeting the investment gold bars with the most investment value. This technology will determine the hierarchy of many factors of gold, make the key points prominent, and facilitate the analysis of the final resultant force of many factors on gold.