This is the 50th most frequent Azerbaijani word.
haqqında
"About" or "concerning."
The word 'haqqında' is used to indicate a topic or subject of discussion, in this case, the book.
Kitab haqqında çox maraqlı məlumatlar öyrəndim.
I learned very interesting information about the book.
In this sentence, 'haqqında' introduces the topic the questions pertain to, which is the project.
Mən sizin layihəniz haqqında bir neçə sual hazırladım.
I prepared a few questions about your project.
Here, 'haqqında' denotes the subject that the article addresses, which is science.