Well, "changed my life" might be a bit much, but "Free Software, Free Society" really changed how I viewed the field I was entering. I didn't really "get" why a

Well, "changed my life" might be a bit much, but "Free Software, Free Society" really changed how I viewed the field I was entering. I didn't really "get" why a developer would just give away code, but the combination of seeing firsthand the power of the libre ecosystem of code-sharing and reading RMS's philosophical arguments both helped solidify my position and also handed me logical tools to use to reason about it and defend my position. I read it as an e-book originally but ended up buying the signed copy.