The content in the book was really good. But I couldn't seem to get over the complete lack of editing. There were so many spelling and grammar mistakes; it made it difficult to understand some sentences. Terminal input and output often had syntax errors or most often just the input or output was inserted instead of both, causing confusion when following along.
The labs were also difficult to follow. Especially the first Swarm lab where there actually wasn't any information about how to setup a lab env for the demo.
That all said the content was really good for a docker newbie and I feel like I learned a lot reading this book.