I am done with this book, but I haven't finished it. I usually like the "For Dummies"-books. You can read about a topic without prior knowledge, without having studied the topic or without experiences.
The authors of those books assume no prior knowledge
You quickly go to a level where you can talk with others about it.
If you like the subject, you can go and read some more advanced books or enroll in an (online) class. If not, then at least you know what it is about.
I recently started reading two books "Big Data for Dummies" and "Data Science for Dummies" simultaneously.
I had to stop both of them because they expect a lot of prior knowledge: math, programming, machine learning, parallel computing, math, statistics (advanced level), ...
It was useless trying to continue. I stopped, maybe one day I will pick them up again, but only after I have brushed up my math, statistics and programming skills and maybe have read some entry-level or dummy) books about machine learning, ...
Both books may contain a lot of information, but they are no dummy-books. Unless, for the data science book, you consider someone with a bachelor's, master's or PhD in computer sciences or math, but without knowledge of data science a dummy.
In case of the big data book, there is just too much jargon.