Energion Publications uses print-on-demand for most of our publications to allow us to print materials that we believe are important, but that may sell to a more limited audience. For various reasons, we may have a number of these books in our office stock, and so we frequently offer these as Office Stock Specials. These specials will be for limited numbers and we remove them once that office stock is sold. Office Stock Specials are an opportunity to get important books in new condition at very good prices.