The nature of the problem...
If you wanted to concentrate on one of your area's very popular linux distributions, perhaps Ubuntu, you might find texts to learn linux by example and that one linux specifically.
There may be few books of the kind you envision, ones that can give you useful information you can understand that still go beyond a general introduction. The code basis of linux is fairly permanent, while the appearance and the way to do things with linux can change frequently and vary greatly between different distributions of linux. It is difficult for a publisher to keep up with something that changes every six to nine months, sometimes quite a lot on that surface that meets any new user.
In case you have not as yet noticed, linux is not Windows. It is not only, and sometimes not primarily, a system that is its graphical presentation and particular desktop work routine. You may quickly need to know more, and the methods and terminology in that Nutshell you bought may prove useful.
You may find you will need the internet with its transitory but current knowledge and at some time you will need commands.
Welcome to linux and Good Luck.
We await your first posting complaining of some intractable configuration problem for an obscure bit of hardware.