Chess Composition is a large subject. Even if you just aim to be a successful competition solver in national and international championships (not a modest goal!), you will need to acquaint yourself with many of the various types of composition – directmates, endgame studies, helpmates and selfmates. Of course, the subject is bigger than that (even within the orthodox genres there are other stipulations) so if you wish to solve successfully in composition magazines there is much, much more to learn about, including the wonderland of unorthodox (or ‘fairy’) chess problems. If your interest is in composing (and most solvers try composing at one stage or another!) you will need to closely study the work of other composers. Whatever your pretensions, even if you just wish to understand and enjoy twomovers from your armchair, this introductory material on the BCPS website is a very good place to start.