Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good both for beginners and for advanced users.

This is an updated tutorial and also a very good reference manual.I have the full set of official LaTeX books(the Lamport's manual, The LaTeX Companion, The LaTeX Graphics Companion,and The LaTeX Web Companion),and also this Kopka-Daly book, and the Hoenig book.The official LaTeX 'basic' books (the Lamport's manual and the LaTeXCompanion) are a bit outdated, so this is the book to buy now.If you are a beginner, this is the book for you, because it coversfrom the basics to advanced topics.If you are not a beginner, you will benefit from it, because it's updated,it's a good trade-off between a too simple basic manual and an advanced one,and because it has very useful parts, like Error Messages, Programming,and a very good and unique Command Summary chapter that is truly special.