u/SpeechKind6078

I am an MA economics graduated last year. So I have passed all the levels of microeconomics and macroeconomics (introductory, intermediate, and advanced).

What is the one book I can say as my go-to book whenever I need to look out an economics concept.

Also, do you advice the book to be a complicated book (with advanced level too mathematical explanations) or a simple one? Or is there a book that includes both?

I want your recommendations and advice.