Tip 10.2.3. Logistics of Asking for Multiple Letters.
If you’re asking a letter writer for multiple letters, give them a consolidated way to keep track of all the letters you’re asking them to write. It’s especially important that they can easily see (1) which programs you’re applying for, (2) when each letter is due, (3) how to submit each letter, and (4) any special instructions about letter content. One good way to do this is to make a table with one row for each program.