I purchased this book before I even bought Cubase 5.1 VST- I had used it before, but always with someone who knew what was going on. I had no idea how MIDI worked, and now, I was planning on jumping in to one of the most detailed, most intricate, most excitingly complex pieces of Audio/MIDI Recording Software ever made.It was overall a good read and worth the money I paid for it. Although it tends to favor the PC in its diagrams (I run on a new iMac under OS 9.2.2), with a little imagination you figure things out rather quickly.Often times the explanations of functions are a bit winded and made to seem much more complicated than they are. (For example explaining every tool in the different Tool Bars...the Eraser is for to erase...) However, the book does go in to detail about the heavier side of Cubase-the more advanced "stuff". It is a great supplement to have along with the Cubase manual, and far easier a read than megabytes of PDF file.