An extensive selection of books concerning spells is available on Amazon.com. A search using the heading "spells" generated more than 16,000 results on the site, as of 2015. Searches can be narrowed to categories such as "Occult Religions and Spirituality" to differentiate between purported real spells and fantastic fiction.
A significant proportion of the books related to spells that are listed on Amazon.com fall into categories of fiction, such as literature, science fiction and fantasy, romance, and teen and young adult. Many more titles are included in categories such as religion and spirituality, wicca, and occult religion and spirituality, that consider the subject in a more serious light.
Books with titles such as "The Element Encyclopedia of 5,000 Spells: The Ultimate Reference Book for the Magical Arts" by Judika Illes, "The Book of Crystal Spells: Magical Uses for Stones, Crystals, Minerals ... and Even Sand," by Ember Grant, and "Cupcakes, Trinkets, and Other Deadly Magic" by Meghan Ciana Doidge are among the hundreds of instructional books of spells available through Amazon.com.
A significant number of books on spells can be read for free through Amazon's Kindle Unlimited plan. Subscribers can choose from thousands of books that can be read on any device for a monthly membership fee of $9.99.