Just to chip in my potentially useless 2 cents...... Another amazingingly intelligent mastering engineer based in Orange County, Southern California is John Vestman. His website is soooooo deep with information on all of the topics that were mentioned as being in the Bob Katz book. The difference is you can read and print all of the info on a website for freeeeee! Check out this link and be prepared to spend a LONG time reading all of this invaluable information. John Vestman has a rather impressive resume himself working on projects of the likes of Sting all the way to Alanis Morissette. www.johnvestman.com Vestman was also the developer/creator of a new monitoring system for masterers that all of the "big boys" including Katz are incorporating into their studios. It allows you to A/B mixes against commercially finished mixes to compare leveling and also frequencies. This product was named at the recent NAMM show as one of the top 10 best.