Internships provide work-integrated learning experiences that help students learn about a career field from professionals, decide if a field is a good fit, gain new skills, and enhance their resumes. They are important because experiential learning allows students to apply classroom knowledge while supervised, without full employee responsibilities. Internships benefit both students and employers - students can earn higher salaries after graduation with internship experience, while employers gain motivated workers and a pipeline for recruiting. Students should utilize resources like internships.com, faculty referrals, and online searches to find and apply for internships with customized cover letters and resumes.