For example, can I ask for book suggestions regarding a particular design style?
On the on-topic help page it says:
Graphic Design SE is for questions targeted toward design professionals, students, and enthusiasts. This includes questions about:
- graphic arts theory and history;
So my guess would be yes you can. Maybe though you could broaden the question to include a short definition of an art style, some examples and book suggestions? I think this could definitely result in interesting and relevant Q&A's.
I would say yes though I would be a bit more specific about your intended use of the book (i.e. are you looking for examples of a style or looking for tutorials regarding a specific style).
It might also be a good idea to include a "What have you found?" so far, akin to "What have you tried?".
I've asked a question regarding book suggestions of graphic design education that had a good reception here, if that can be helpful.