did he write any books for kids?
Yes, "The Father Christmas Letters", "Mr. Bliss" and "Roverandom"
J. R. R. Tolkien
 He wrote annual Christmas letters from Father Christmas for them, building up a series of short stories (later compiled and published as "The Father Christmas Letters"). Other works included "Mr. Bliss" and "Roverandom" (for children), and "Leaf by Niggle" (part of "Tree and Leaf"), "The Adventures of Tom Bombadil", "Smith of Wootton Major" and "Farmer Giles of Ham". "Roverandom" and "Smith of Wootton Major", like "The Hobbit", borrowed ideas from his "legendarium".
who forged the ring in lord of the rings The Dark Lord Sauron what is the genre of it? UNANSWERABLE who created it? According to J. R. R. Tolkien's "The Lord of the Rings", the One Ring was forged by the Dark Lord Sauron what power does it grants ? Control of the other Rings of Power and domination of the wills of their users, a mortal wearing the Ring became effectively invisible except to those able to perceive the non-physical world where was the above mentioned writer from? England any other famous writing of him? "Sketch of the Mythology","Beowulf": The Monsters and the Critics" with whom was he married? Edith Mary Bratt
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J. R. R. Tolkien [SEP] Children's books and other short works
In addition to his mythopoeic compositions, Tolkien enjoyed inventing fantasy stories to entertain his children. He wrote annual Christmas letters from Father Christmas for them, building up a series of short stories (later compiled and published as "The Father Christmas Letters"). Other works included "Mr. Bliss" and "Roverandom" (for children), and "Leaf by Niggle" (part of "Tree and Leaf"), "The Adventures of Tom Bombadil", "Smith of Wootton Major" and "Farmer Giles of Ham". "Roverandom" and "Smith of Wootton Major", like "The Hobbit", borrowed ideas from his "legendarium".