These books are great reads for anyone interested in self - improvement. To use them, simply find a quiet place, sit back, and start reading page by page. When handling the books, be gentle because the bindings are a bit stiff and slipping. Try not to spill anything on them as there's already some soiling. To maintain them, store them in a dry and clean place away from direct sunlight. If the dust jackets get dirty, you can gently wipe them with a soft cloth. Enjoy your reading!