Samuelson's economics and Man Kun's economic principles are not easy to understand. You need a bachelor's degree to understand them. I suggest you read a book. Everyone loves economics, which is easy for Wang Zhongfu to understand. Chen Zhiwu's The Logic of Finance is also very good! I believe it will be better for you to read these two books before reading other classic professional books.
Don't read Currency War, there are some incomplete conclusions in it, and you have no foundation, so read some formal and comprehensive books.