* University/College: Contact the university or college's registrar's office. Their website will usually have instructions and forms for requesting transcripts. You might be able to request them online, by mail, or in person. There's usually a fee involved.
* Community College: Same as above. Contact the registrar's office of the community college where you took the summer course.
* Online Course Provider (e.g., Coursera, edX, etc.): Many Massive Open Online Courses (MOOCs) don't issue traditional transcripts. They might offer a certificate of completion, which is not the same as a transcript. Check the specific provider's website for their policies on certificates or transcripts. Some may offer paid transcript services through a third-party.
* High School Summer School: Contact the high school's guidance counselor or registrar's office.
In short: Always check the specific institution's website for their transcript request procedures. Look for a "Registrar," "Student Records," or "Transcript Services" section. Be prepared to provide personal information (name, student ID, dates of attendance, etc.) and likely pay a fee.