This book has been a central text for August orientation at the CDE for the microeconomics module. The portion on "The Political Philosophy of Redistributing Income" has also been assigned as required reading in "Public Economics," a core course taught in the fall, for discussion on efficiency, equity, and social welfare.
The CDE currently uses the sixth edition, although previous editions are fairly similar.
Mankiw, N. G. (2011). Principles of Microeconomics. Boston, Cengage Learning.