Spielmann had comments on all the games that he gave the moves for. The treasure of the book is his introductory comments to each game. That was the point of the book. It was not to analyze all the moves or even most. Just where he felt it was worth mentioning. 

We get to watch a brilliant young man in the early stages of putting himself together. Rudolf Spielmann was a chess genius wrestling not only with chess theory and chess players over the board. He had to put up with much nonsense and, most importantly, figure out who he was as a player. He would truly peak in the 1920s with some superb tournament performances. It all started with the games and thoughts in this notebook.