The Grid Systems book that was recommended earlier is a better bet if you're a typographer or graphic designer, and particularly if you're thinking about designing novel grid systems. But you're not doing that. The Bootstrap grid is trivial and does not require any background in design to use.
I mean I am a designer but still taught myself programming and is generally interested in technology.
Understanding design better will make you a better programmer IMHO.
_Elements of Typography_ (which also has some coverage of grids, along with meter systems), yes. _Elements_ is a buy-immediately book (and a joy to read).
Although, nothing beats Brockmann's Grid Systems book mentioned earlier.
http://www.amazon.com/Ordering-Disorder-Principles-Design-Vo...