"How will we support ourselves in 30 years?" Is a question that everyone should be concerned about. This book combines investment and financial management cases in real life to illustrate the importance of financial management, provides readers with scientific financial planning, and conducts in-depth and simple analysis from aspects such as consumer expenditures, investment concepts, financial management tools, inflation response, financial planning, etc., And explains step by step how to guide 20 to 50-year-olds It also systematically introduces the financial management tips of different ethnic groups such as the "Moonlight Clan", "Beidiao Clan", "White-collar Clan" and "Business Poor Clan", etc., Striving to help readers prepare in advance, set aside food for winter, and effectively meet the challenges of life in 30 years' time. This book clarifies many confusing things in life, "Why am I like this today?!" This is the doubt that many people have after something happens. This book reminds us to prepare for a rainy day. No matter whether the road is smooth or rugged, we must be prepared so that we can be calm when the time comes.