If there is one go-to book that is lucid, relevant and makes perfect sense all-throughout without making you confused, it’s going to be this one:

Macroeconomics by Olivier Blanchard.

We went through 3 textbooks during undergrad: Mankiw, Dornbusch & Blanchard, and in my opinion, Blanchard was the best.

He explains things very simply. The nomenclature in the graphics doesn’t leave you confused. The topics are segmented well and interconnected in a very lucid manner.

If you need to understand Macroeconomics, Blanchard’s textbook is the perfect one.