Louis Klein’s “Orchids in Homeopathy” is the result of his extensive research into this fascinating family of plants; these plants have long been the prized objects of voracious collectors in many cultures. His cases reveal the usefulness of these remedies in those with learning difficulties such as ADHD, autism spectrum disorders, Asperger’s and dyslexia, areas where we homeopaths often struggle to find matching remedies. With its well-defined descriptions and accurate analyses, the link between theory and practice is made clear and applicable. There is also a strong affinity with the sexual organs, neurological complaints, fungal infections and allergies. With its well-defined descriptions and accurate analyses, the link between theory and practice is made clear and applicable. Wonderful, like a fresh glass of water.