In the early 17th century a stack of books was often used as a symbol of vanity. The Hebrew letters suggest a biblical setting.
The usual interpretation of the parable is that there is no point in spending a life gathering wealth. After all, onced you die money is of no use. It might even get into the hands of people who do not deserve it. It is therefore thought to be wiser to be "rich toward God".
The alternative title is "The Money Changer".