PS The statement of purpose should be 300-500 words concerning your purpose for undertaking or continuing graduate study, your reasons for wanting to study at Purdue, and your research interests, professional plans, and career goals. You also may explain any special circumstances applicable to your background and elaborate on your scholarly publications, awards, achievements, abilities, and/or professional history. GPA Undergraduate Cumulative Grade Point Average: 3.0 or equivalent required Fee The Graduate School application fee is $60 (U.S. dollars) for domestic applicants and $75 (U.S. dollars) for international applicants. You must pay your application fee online with your credit card. Visa, MasterCard and Discover cards are accepted and processed using a secured online payment system. Your application will not be processed until your nonrefundable application fee has been paid. RL Letters of Recommendations: At least 3 letters of reference completed by individuals who can provide an accurate and objective evaluation of the applicant should be submitted online to each recommender. If you have not yet been assigned a student id, leave that information blank. Transcript You must provide official transcripts and/or academic records at the request of the graduate program or if you are admitted and choose to enroll. An official transcript bears the original signature of the registrar and/or the original seal of the issuing institution. Official documents should be submitted to: Office of Graduate Admissions Purdue University Graduate School 155 South Grant Street, YONG 170 West Lafayette, IN 47907 詳情見https://www.purdue.edu/gradschool/admissions/how/apply-transcripts.html