The idea is very good, but to do any business, you need to do a full investigation beforehand and a clear and clear profit model. Revenue is revenue minus cost. First, open a book and decide whether to sell books as the main income or tea or coffee as the main income. Everyone goes to your book bar to spend money. How much income do you expect to bring you? Second, you need to know the rental price of the office building you want to open. Considering the cost of renting a house, utilities and employing people, work out the monthly cost. Third, first of all, we should do a full market survey, including how many companies there are in the whole building, how many people there are, and what industries they mainly do. At least 200 questionnaires should be sent out to investigate whether people in this building are willing to go to the book bar for consumption. Based on the information collected above, you can make a more rational judgment and better estimate whether it is worth investing. Remember, venture capital is played with real money, so you must make a full investigation before making a judgment, not making a decision.