Microeconomics:
1. Principles of Microeconomics by N. Gregory Mankiw: This book is widely used in introductory microeconomics courses. It provides a clear and concise introduction to the principles of microeconomics, covering topics such as supply and demand, market structures, consumer behavior, and welfare economics.

2. Microeconomics: Theory and Applications with Calculus by Jeffrey M. Perloff: This book is suitable for students who have a strong background in calculus. It applies mathematical tools to analyze microeconomic concepts and provides examples and real-world applications to enhance understanding.

3. Microeconomic Theory by Andreu Mas-Colell, Michael D. Whinston, and Jerry R. Green: This comprehensive textbook is recommended for students pursuing advanced studies in microeconomics. It delves into the mathematical foundations of microeconomic theory, covering topics such as consumer and producer theory, general equilibrium, and market failures.

Macroeconomics:
1. Macroeconomics by N. Gregory Mankiw: This widely used textbook provides a solid foundation in macroeconomic principles. It covers topics such as economic growth, unemployment, inflation, monetary and fiscal policy, and international trade. The book presents both theoretical concepts and real-world examples to help students understand macroeconomic issues.

2. Macroeconomics: Institutions, Instability, and the Financial System by Wendy Carlin and David Soskice: This book takes a more institutional and historical approach to macroeconomics. It explores the interactions between economic institutions, financial markets, and macroeconomic stability, providing a deeper understanding of the complexities of macroeconomic analysis.

3. Macroeconomics by Olivier Blanchard: This textbook offers a rigorous and modern approach to macroeconomic theory and policy. It covers key macroeconomic models, such as the IS-LM model and the AD-AS model, and explores topics such as business cycles, monetary and fiscal policy, and economic growth. The book also incorporates recent developments in macroeconomics, making it suitable for advanced students.

These recommended books provide a solid foundation in microeconomics and macroeconomics. They cover a wide range of topics, from basic principles to advanced theories and applications. Whether you are a beginner or an advanced student, these books will help you develop a comprehensive understanding of economic principles and their real-world implications.