Unveiling a trick I’ve kept a secret for years: How to (sometimes) double the value of your textbooks
In this article:
- How to remove access cards from textbooks and sell them separately.
- My new book is out: Trade-In Arbitrage (spoiler alert: It’s free. Download here).
I’ll admit, its painful for me to make this trick public, but as they say, when you love something, set it free…