My favorite text book way back when was Prentice Hall's Federal Taxation XXXX Comprehensive where XXXX is the year. I don't know if they are still as good, and I think that you can buy just the Corporation part instead of the Comprehensive. This is what my college course in Advanced Taxation used, and I thought that it had really good information about basis, and depreciation, and AAA, etc. But being a college textbook, it ain't cheap. The comprehensive edition has individual taxation for the first half of the book, and corporate for the second half. I think the college I went to used the book for both Basic Taxation and Advanced Taxation, but I tested out of basic and only took Advanced so I am not familiar with the first half of the book. And you might check if there is a college near you that offers accounting majors to see if they have an advanced taxation course that covers corps and partnerships - if you choose to take the course, you would probably need to buy a specific text book. Good luck. I hope some other people share their suggestions - I might want to update my textbook!