Card Repertories are nothing but the compilation of the various chits, slips, paper cuttings prepared by homoeopaths for their own purpose. This is a remarkable contribution to the Homoeopathic field which introduces a modern method of working out of the case by using different types of cards and this new technique of repertorisation demonstrates to be time saver and helpful in minimising the labour of writing rubrics, medicines when using the old method of plain paper sheet. This Course will discuss Card Repertories briefly and then go through the different aspects of Card Repertories including, the origin, the philosophy, plan and construction of the card, the working method through cards and even the scope and limitations of the Card Repertories.