A primer is either an elementary schoolbook or a brief introduction to any subject. It should be short, clearly written and interesting.
This primer of electrocardiography meets these requirements. It has been constructed mainly for students and as a supplement to the more elaborate texts on electrocardiography, which are now so numerous that every medical school library has several on hand. Its charm lies in its simplicity: The language is clear and not too technical or wordy; the illustrations are diagrammatic and easily interpreted, and the arguments are stated with the assurance and positiveness that students always like.
On the whole, this small book deserves considerable popularity. It is certain to make many friends.