Excellent example Kylemeister; it shows that the book is still relevant today, even in chess at the highest level.
The Open Sicilian chapter is the largest and best of the book. In the old McKay edition it spans pages 66 to 154. And there's no clutter with excessive prose or variations, it's all highly focused, very instructive material.
Pawn Structure Chess is, in my opinion, the best single-volume opening/middlegame "how to play these kinds of positions" manual. My only real complaint is that it isn't bigger.
You need to understand these things to become a strong player. You can pick up everything from other places--for instance, McDonald's
Mastering the French with the Read and Play Method is outstanding--but you'd need multiple other opening books to piece together all of the material you get in Soltis's.
Additionally, the fact that it's a single volume is a blessing in many ways. It's very concisely and clearly written, no extraneous material or excessive prose, and everything is very accessible to a club player. It's an excellent foundation that you can build on with more specialized knowledge (theory) later. It rewards deeper investigation as well, as the annotations are sparse but spot-on, and I've learned a lot by asking myself, "Why didn't Spassky put his rook
here instead of
here if he's planning on pushing d4-d5?", for instance.
Lastly, when you're playing people rated below 2200 all the time (which is almost everyone who posts here), you'll find that the games and variations in Soltis's book are far more relevant to you than most dedicated opening manuals. Here's an example, the most recent rated Open Sicilian game I played:
etc, etc; I won on move 59.
Here's another game where we leave "theory" early on but the game is interesting:
White mixed his plans and tried to do a little bit too much...he's actually quite a good attacker/tactician/hacker, but since he didn't understand how to handle the central pawns, he never had the chance to demonstrate that in this game.
Both sides had interesting and arguably better alternatives earlier in both of those games, but my point is that you aren't going to learn how to play against all of this random (but perfectly reasonable) stuff that people throw at you in most opening manuals.