The aim of this little book is to state in a concise and simple way the simple truths in the practice of photography. As the worker progresses and'it be comes necessary to make Second Steps, it cannot be better done than by consulting a specialized work treating only upon the subject on which he is desirous of obtaining information. Practically every department of photography has its own special book. Whilst touching upon Specialization it is suggested to the reader that, having acquired a good general knowledge of photography, if there should be a desire to make further progress, the very best thing to do is to make a special study of one branch, or in other words To Specialize.