I think you need two books - one on budgeting, and one on investing. I cant recommend a budgeting one but would recommend bogleheads, as suggested by liamcarde

I think you need two books - one on budgeting, and one on investing. I cant recommend a budgeting one but would recommend bogleheads, as suggested by liamcardenas. Another book worth reading, although heavier is the Intelligent Investor. I read the annotated version and its similar advice to bogleheads. If you really get into investing read Warren Buffetts shareholder letters