I don't think you need a book. When commodities are priced primarily in USD then a decrease in the value of USD leads to an increase in the number of dollars r

I don't think you need a book. When commodities are priced primarily in USD then a decrease in the value of USD leads to an increase in the number of dollars required to make the same purchase. Increase in any price can be seen as an increase in item value or a decrease in USD value. It takes a more in depth analysis of the market to determine which is the cause of price increase.