A physics major entering their sophomore year is seeking additional resources for problem-solving practice in modern physics, expressing difficulty with the problem-solving aspect of their studies. Responses emphasize that problem-solving skills improve with practice, suggesting revisiting freshman physics texts for additional problems. The discussion highlights the importance of having solution guides for practice problems, as the student’s previous textbook lacked solutions, making it hard to verify their work. Recommendations include a specific text with challenging problems that include some solutions, as well as alternative books that may vary in readability but are available at low cost. Overall, the conversation underscores the necessity of practice and the availability of resources to enhance problem-solving skills in physics.