The more advanced methods are interspersed in an almost haphazard way with the beginning techniques. Simple typesetting problems like creating multiple columns, changing margins, and using a different font size are covered very obliquely, and it takes multiple readings to figure out how to do such things.

However, the section on creating mathematical equations is very well done, and I was soon able to master very complicated formatting. The book also talks about "proper" typesetting--the three different dashes and when to use them, the difference between spacing after an abreviation and a sentence-ending period, etc. I only wish Knuth had included all those great tidbits in a table somewhere--sometimes it can take quite a long time to hunt down the information.

TeX is a wonderful typestting language that is great for anything from math reports to psychology research papers, to book typesetting. Unfortunately this book does a poor job of explaining the language, and is not a good reference for someone who is familiar with it.

The writing is superb, full of fine detail and more than a few clever jokes. Why can't recent books about modern systems be so delightful? Maybe David Pogue's Missing Manual series comes close, but the topics are not quite as technical.

As a reference, the TeXbook is weak because each command or concept is scattered across so many places: one introductory chapter, one summary chapter, in exercises, in "dangerous bend" passages, and so on. I believe the book is best organized for front to back reading, although probably in two or three passes if you include the dangerous bends. For reference, I prefer TeX by Topic by Victor Eijkhout. It is out of print, but available for download on his web site.

The paperback edition of the TeXbook is spiral bound. I appreciate that it lays flat, but the back pages are always falling out of the binding!