The Tolkien Estate now has a website, which among other things includes J. R. R. Tolkien’s own paintings, illustrations—and maps. But the maps aren’t from the published editions of The Lord of the Rings and The Silmarillion: those were drawn by his son Christopher. These are Tolkien’s own maps, drawn during the writing process. We see rough sketches of Arda, originals of the Hobbit maps, and the maps of Middle-earth that grew and changed as he wrote The Lord of the Rings. [Kottke]