Tim Sawyer illustrates chess strategy from games played vs random "Advanced" players as Guests on chess.com. The book has 31 games with 174 diagrams. Black wins 21 games and White wins the other 10. Tim mostly plays as Black in these 10-minute blitz games. Opening theory and endgame knowledge help your play, but tactics win most games.
The author uses strategy for many comments to explain what's going on. He follows any of these steps. 1. Describe the current position. 2. Imagine how to improve it. 3. Plan how to get there.
Tim picks a key position every few moves to make a comment. His plan is for you to browse through the book, look at the diagrams and read the comments with ease.
For those who prefer to read quickly, you can skim through the book from diagram to diagram. Note the change from the previous diagram and read any notes that interest you.
Sometimes a line of chess engine analysis is added. You may wish to work out those lines in your head, or just note that there was an alternative way to play and keep reading.