Question: The books in which Caras Caladhon is a fictional city have sold how many copies?

Context paragraphs:
Tom Forcade: Thomas King Forçade (September 11, 1945 – November 17, 1978), a.k.a. Gary Goodson, was an American underground journalist and cannabis rights activist in the 1970s.  For many years he ran the Underground Press Syndicate (later called the Alternative Press Syndicate), and was the founder in summer 1974 of "High Times" magazine.  "High Times" ran articles calling marijuana a "medical wonder drug" and ridiculing the US Drug Enforcement Administration.  "High Times" became a huge success with a circulation of more than 500,000 copies a month and revenues approaching $10 million by 1977 and embraced by the young adult market as the bible of the alternative life culture.  By 1977 "High Times" was selling as many copies an issue as" Rolling Stone "and "National Lampoon.  "Forcade published several other publications such as" Stoned, National Weed, Dealer" and others that always were laced with some of the best humor, pop culture and a forum for some of the best writers, artists and political savvy mostly veiled as the counter culture entertainment magazine.  Many of the writers went on to be published in premiere papers and magazines in North America.

From Unknown Worlds: From Unknown Worlds is an anthology of fantasy fiction short stories edited by John W. Campbell, Jr. and illustrated by Edd Cartier, the first of a number of anthologies drawing their contents from the classic magazine "Unknown" of the 1930s-40s.  It was first published in magazine format by American company Street & Smith in 1948; the publication was an attempt to determine if there was a market for a revived "Unknown".  Street & Smith printed 300,000 copies, against the advice of John Campbell, but although it sold better than the original, too many copies were returned for the publisher to be willing to revive the magazine.  The first British edition was issued by Atlas Publishing in 1952; part of the run was issued in a hardcover binding.  This edition omitted the story "One Man's Harp." .

Caras Galadhon: In J. R. R. Tolkien's Middle-earth legendarium, Caras Galadhon (pronounced ) is a fictional city in his work "The Lord of the Rings".  It appears mostly in "The Fellowship of the Ring", but it is also mentioned in the Appendices of "The Return of the King".

The Lord of the Rings: The Lord of the Rings is an epic high fantasy novel written by English author and scholar J. R. R. Tolkien.  The story began as a sequel to Tolkien's 1937 fantasy novel "The Hobbit", but eventually developed into a much larger work.  Written in stages between 1937 and 1949, "The Lord of the Rings" is one of the best-selling novels ever written, with over 150 million copies sold.

Cosmological interpretation of quantum mechanics: The cosmological interpretation of quantum mechanics, proposed by Anthony Aguirre and Max Tegmark, is an interpretation of quantum mechanics that applies in the context of eternal cosmological inflation, which arguably predicts an infinite three-dimensional space with infinitely many planets and infinitely many copies of any quantum system.  According to this interpretation, the wavefunction for a quantum system describes not some imaginary ensemble of possibilities for what the system might be doing, but rather the actual spatial collection of identical copies of the system that exist in our infinite space.  Its collapse can be avoided.  Moreover, the quantum uncertainty that you experience simply reflects your inability to self-locate in space, i.e., to know which of your infinitely many copies throughout space is the one having your subjective perceptions.

Sega All Stars: Sega All Stars was Sega's budget series for the Dreamcast, similar to Platinum Hits, Greatest Hits, and Player's Choice, for games that have sold many copies.  When a title became a Sega All Stars title, it was sold at a lower price ($19.95) and given reprinted labeling.  Sega All Stars was exclusive to North America, game covers were given an orange bar (as opposed to Europe's blue color scheme) with the brand name written from top to bottom.  The disc labels were also changed to include a small circle and the Sega All Stars brand printed inside of it.  17 titles were made into Sega All Stars titles.  Also, in printing, original releases said "Sega Dreamcast" on the disc but the All-stars versions just simply said "Dreamcast" to match up games released with the black label like "D2", "Jet Set Radio", "Sega GT", and "Sonic Adventure 2".  Original Dreamcast games were released in the white labels and said "Sega Dreamcast" on the inlay like the Sega All-stars labels.

The Burning Red: The Burning Red is the third album by the American groove metal band Machine Head.  It is the band's second best selling album in the US, selling as many copies in three years as "Burn My Eyes" sold in almost eight years (1994–2002) .  The album has sold over 134,000 copies in the US and it was certified silver in 2011 by the BPI for sales of 60,000 in the UK.

Schimmen van schoonheid: Schimmen van schoonheid (English ""Shades of beauty"") is a collection of short stories, written by Louis Couperus and published by Van Holkema & Warendorf in 1912.  It is not known how many copies were printed for the first edition, but this edition was in any case sold out by 1929.  The second edition was published in 1962 by Querido in the so-called Salamander series (number 71).

Rocca (Italian-American rapper): Rocca is an American rapper.  He was born in California.  His first official album entitled "Sexy Smooth" was released in January 1993 and sold many copies in the United States as well as many other countries.  Rocca has 3 music videos to his credentials and wrote/rapped/starred in the "James Bond Spoof - Secret Agent OO Soul - with Billy Dee Williams".  Rocca feels that there was an obligation to the youth of the world to try to promote positivity.

Suanfa tongzong: Suanfa tongzong (General Source of Computational Methods) is a mathematical text written by sixteenth century Chinese mathematician Cheng Dawei (1533–1606) and published in the year 1592.  The book contains 595 problems divided into 17 chapters.  The book is essentially general arithmetic for the abacus.  The book was the main source available to scholars concerning mathematics as it developed in China’s tradition.  Six years after the publication of Suanfa Tongzong, Cheng Dawei published another book titled "Suanfa Zuanyao" ("A Compendium of calculating Methods").  About 90% of the content of the new book came from the contents of four chapters of the first book with some rearrangement.  It is said that when Suanfa Tongzong was first published, it sold so many copies that the cost of paper went up and the lucrative sales resulted in unscrupulous people beginning to print pirated copies of the book with many errors.  it was this that forced the author to print an abridged version.

Supporting paragraphs: Caras Galadhon The Lord of the Rings
Answer: over 150 million copies