When the author says this book is for everyone, he really means it. If you have basic experience with Python, perhaps there is a better book out there for you. In most chapters, the author details key methods as it relates to dataframes, etc. But, instead of showing the options in a methodical way, the author picks one or two that you may happen upon and uses them.
Frankly, the reader would benefit more from seeing pandas used in the context they want to use it. For instance, you can look up the youtube series about using SQL with Python from Bryan Cafferky, or try Python for Data Analysis, or even Python for Excel.
As an aside, I was also quite perplexed by how the author chose to describe the statistical methods. For somebody who knows statistics, the descriptions are too trivial to add much value in the book. For somebody who doesn't know stats well/the aspiring data analyst, please take a stats course designed for stats majors or math majors - you will be so much better off than trying to learn boot camp statistics to be a data analyst.