Recommendations for undergraduate solid state physics books emphasize the importance of having plenty of examples for self-study. Kaxiras's book is noted as a strong choice, providing a solid foundation. Kittel's book is also mentioned, suitable for upper-division courses. Additionally, Ashcroft's "Solid State Physics" is highlighted as a comprehensive resource for deeper understanding. These texts are recognized for their clarity and practical applications in the field, making them ideal for students looking to enhance their knowledge independently.