Your original question is not directly answerable.
There is no "best" without some quantitative measurement that determines "best".
The number of pages is not a valid measurement.
Very likely there are many books available. Some books may have very good pictures and graphs but poor explanations.
A book with good explanations may have poor examples.
Or good examples may not be relevant to your environment or requirements.
That is why I, speaking for myself, may have several books for any given subject. Eg., Powershell.
And I still go online to find information, explanations, and examples.
Some are good, some not so good.....