Written as an intermediate level book between Stroustrup's beginner level "Programming -- Principles and Practice" and expert level "The C++ Programming Language", this book introduces the core concepts and language features that define C++ with just enough explanation for a moderately experienced programmer to understand what they are used for and when to use them. As such it is probably the ideal book for somebody who is experienced with another language who wants to learn how C++ differs or implements similar concepts, or a programmer familiar with older C++ code who wants to learn what is new in the latest language revisions.
The book is written with Stroustrup's usual clarity and precision, and provides valuable insights into the language's design and evolution from the horse's mouth. "The C++ Programming Language" gives far more detail in this regard (occasionally too much), but as of writing it only covers the language up to C++11 whilst this book is fully up to date with C++17 and contains a preview of the likely features of C++20.
If I was to fault the book at all it is that there is too much focus on "concepts" (the language feature) which are planned for 20 and hence aren't likely available where you work, but I guess that will become less true with time so it's probably good to have them explained somewhere.
Whilst this an excellent overview, once you've read this book you will probably still want and need more information if you want to use C++ effectively. Scott Meyer "Effective C++" and "Effective Modern C++" are the obvious choice for that, and are widely acknowledged as The Bible for C++ programmers. After that, if you have a few years C++ experience under your belt and truly want to master the language then "The C++ Programming Language" is definitive. Maybe by then we'll have a new edition for C++20 as well.
Best book for intermediate programmer. Introduces lots of the concepts that are being used more and more in other languages. Not front to back or syntax but as bjarne is famous for, explainative and comprehensive interesting read.