"The Prescriber" by John Henry Clarke was first published in 1885 (updated in 1925) and it still finds utility over a century after its debut. With an essay, "How to Practice Homoeopathy" this little book has helped thousands of lay practitioners to prescribe successfully and carry the message of homeopathy worldwide. In this work the names of diseases are given in alphabetical order like a dictionary and under each such heading the name of medicine or medicines most useful in the particular disease are given. When more medicines than one are named, they will be found prefixed to each symptom which would help the prescriber to choose that in preference to the rest. When no such differentiating symptoms can be given, the medicines are named in order of their general applicability and numbered to be used in that order. This work is one of the classical works written for homeopathic therapeutics and which is enriched with Clarke experience of several years of practice and study.