Business and the Academy Don't Mix

I wanted to check out some of the top business books recommended by 800CEOREAD, so I decided to search the Yale Library catalog. However, the book did not appear. So then I went to the Yale library's Borrow Direct service where I could search the combined catalogs of every single Ivy League University (except Harvard's cause they very snobbishly didn't join the consortium:-P). Only two of the top ten books at 800CEOREAD were found among the combined 30+ million volumes that these libraries contain. I guess research libraries and libraries for practical use are two different things entirely.