Any Advanced Herbal Course student can request a letter of recommendation, and in Unit 1, Lesson 1 we describe the process and requirements for doing that. You can read that detailed description in the "SUBMITTING A LETTER OF RECOMMENDATION REQUEST" section of Unit 1, Lesson 1. Please keep in mind some of the course work and monograph project would need to be submitted for review.

Note that if a student meets the requirements for a letter of recommendation, it can attest that you have completed the course and met its requirements, have completed assignments that demonstrate competency, and have had interactions with teachers that further demonstrate an advanced level of proficiency with the concepts. Those are the aspects of a student's studies/competency that teachers can speak to based on their involvement in the Advanced Herbal Course, assuming all of those have been achieved.