> Purchasing my copy of grid Systems in Graphic Design, by Josef Muller-Brockmann, was the best money I've ever spent on a design text. I was a relatively seasoned designer with 6 years of pro-experience when I was fortunate enough to find a copy of this masterpiece. I was largely self-taught however, and while I knew from working in various layout programs about grids, I had no idea how powerfully they could be utilized. Within a weekend of reading and absorbing this book, my designs had improved substantially.

Sounds about right!