The E-learning course with George Vithoulkas is a natural follow up to basic homeopathic studies and the information is gold to any practicing homeopath. Learning the levels of health finally explains why some cases are easy while others are difficult and what to do in tackling those difficult cases. The course solidified my understanding of homeopathy from the philosophy in the Organon to the remedies themselves. There are many gems in this course and I believe every homeopath would benefit from the learning it provides. You can sign up for the course here: