This seems like it's gonna be a history of the beef between Pac and Biggie, but it's more an analysis and comparison of their music. I didn't learn anything new about either of them, despite the fact that I somehow managed to live this long without reading any books on them, though I wonder if that wouldn't have been the case with any of the rest of the books. After all, I grew up during that era and spent a lot of my adult life listening to, thinking and writing about their music. There doesn't even seem to be a lot of books on Biggie other than the autobiography McGarvey recommends here. One of the points they seem to agree on is that while Biggie is more well-regarded by critics, Pac seems to have the more enduring legacy, with the college classes, his lingering influence on subsequent generations of rappers, people in furrin countries, who don't even speak English, who nevertheless fuxwit his music (of course they do), so on and so forth.
I wish this was twice as long, and Weiss and McGarvey really went in, or they wrote their own separate, full-length books, but this is plenty enjoyable for what it is.