in fairness, you do have Stephen King on the list.
Yes, but the overwhelming majority of King's work is SFF and the majority of his sales are clearly from his SFF works. CS Lewis also wrote a fair number of non-fiction and non-SFF works, but I'd hazard that a minimum of 95% of his sales are of the
Narnia books alone, so the rest is negligible.
Compare that to Crichton, who wrote 27 novels but only 8 of them are unambiguously SF. Those include some of his best-known books (
Jurassic Park,
Sphere,
The Andromeda Strain etc) but he's also written quite a few big-selling books which aren't SFF at all.
However, I have included authors in brackets who have written SFF but isn't the basis for all or the majority of their books.
The bottom part of this list is stunning. Elizabeth Moon with something like 100,000 copies? Ann McCaffery and Robin Hobb with just over a million? Lois McMaster Bujold with two million copies? These are giants of the field. Perhaps almost a mystifying is the fact that they are trumped by all sorts of authors about whom I've never heard.
As I said above, Moon's figure is many times that, probably a couple of million at least. However, I can't find any info to support that. The 100,000 figure is of the US edition of the omnibus of her first trilogy alone.
Hobb's figure is ten years old. I'd say it was at least four or five times that by now but again, no info to support that.
Bujold's is again an old figure, but actually more likely to be accurate. Bujold is a success in the United States, but pretty unknown outside of it (every attempt to publish her in the UK has been abandoned after a book or two due to poor sales).
List updated again:
1) J.K. Rowling (c. 450 million)
2) Stephen King (c. 350 million)
[Dean Koontz (c. 350 million)]
3) JRR Tolkien (c. 300 million)
[Michael Crichton (200 million)]
4) CS Lewis (120 million+)
5) Stephanie Meyer (116 million)
6) Sir Arthur C. Clarke (100 million+)
7) Anne Rice (100 million)
8 ) Sir Terry Pratchett (85 million+)
9) Robert Jordan (80 million+)
10) James Herbert (54 million+)
11) Richard Adams (50 million+)
12) Suzanne Collins (50 million+)
[Dennis Wheatley (50 million)]
[Morgan Llywelyn (40 million)]
13) Christopher Paolini (39 million)
14) Michael Ende (35 million)
15) Stanislaw Lem (30 million+)
16) R.A. Salvatore (30 million+)
17) Charlaine Harris (30 million+)
18 ) George R.R. Martin (28 million+)
19) Kaoru Kurimoto (28 million)
20) Terry Brooks (26.5 million)
21) George Orwell (25 million+)
22) Terry Goodkind (25 million+)
23) Diana Gabaldon (25 million)
24) Cassandra Clare (24 million)
25) Kevin J. Anderson (23 million)
26) Eoin Colfer (21 million)
27) Isaac Asimov (20 million+)
28 ) Margaret Weis & Tracy Hickman (c. 20 million)
29) Brian Jacques (c. 20 million)
30) Kazumasa Hirai (c. 20 million)
31) Raymond E. Feist (20 million+)
32) Michael Moorcock (20 million)
33) Frank Herbert (18 million)
34) Hideyuki Kikuchi (18 million)
35) Tad Williams (17 million)
36) Douglas Adams (16 million)
37) Rick Riordan (15 million)
38 ) Philip Pullman (15 million)
39) Yoshiki Tanaka (15 million)
40) Timothy Zahn (15 million)
41) Robert Heinlein (11.5 million)
42) Diana Wynne Jones (10 million+)
43) Robert E. Howard (10 million+)
44) Stephen Donaldson (10 million)
45) Neil Gaiman (10 million + )
46) Alice Sebold (10 million+)
47) Madeline L'Engle (10 million+)
48 ) Chris Bunch (10 million+)
49) Allan Cole (10 million+)
50) Ray Bradbury (8 million+)
51) David Weber (7 million)
52) Laurell K. Hamilton (6 million+)
53) Jim Butcher (6 million+)
54) L. Frank Baum (5 million+)
55) Garth Nix (5 million)
56) Frank Schatzing (4.2 million+)
57) Lian Hearn (4 million)
58 ) David Drake (4 million)
59) Veronica Roth (4 million)
60) Roger Zelazny (3.5 million+)
61) Ursula K. Le Guin (3 million+)
62) Guy Gavriel Kay (3 million)
63) John Ringo (3 million)
64) Joe Abercrombie (3 million)
65) Margaret Atwood (3 million+)
66) Robert Silverberg (3 million+)
67) Eric Flint (3 million)
68 ) Scott Westerfield (3 million+)
69) Harry Turtledove (2.5 million)
70) Audrey Niffenegger (2.5 million+)
71) Max Brooks (2.4 million+)
72) Susan Cooper (2 million+)
73) Orson Scott Card (2 million+)
74) Sergei Lukyanenko (2 million+)
75) Hans Dominik (2 million+)
76) Peter F. Hamilton (2 million+)
77) Brent Weeks (2 million)
78 ) Andrzej Sapkowski (2 million+)
79) Lois McMaster Bujold (2 million)
80) Katherine Kurtz (2 million)
81) Trudi Canavan (2 million+)
82) Stephen Lawhead (2 million+)
83) Robert Rankin (2 million+)
84) Maggie Stiefvater (2 million+)
85) Melanie Rawn (1.8 million+)
86) Jennifer Roberson (1.7 million)
87) Susanna Clarke (1.5 million+)
88 ) Dan Abnett (1.2 million+)
89) Naomi Novik (1.2 million+)
90) Ed Greenwood (1 million+)
91) L.E. Modesitt, Jr. (1 million+)
92) Connie Willis (1 million)
93) Sara Douglass (1 million)
94) Anne McCaffrey (1 million+)
95) Robin Hobb (1 million+)
96) David Gemmell (1 million+)
97) Steven Erikson (1 million+)
98 ) Alastair Reynolds (1 million+)
99) Ian Irvine (1 million+)
100) Richard A. Knaak (1 million+)
101) Katherine Kerr (1 million+)
102) Dave Duncan (1 million+)
103) Chris Wooding (750,000+)
104) Hugh Howey (500,000+)
105) Alison Croggon (500,000+)
106) Gail Carriger (400,000+)
107) Lynn Flewelling (350,000)
108 ) Peter V. Brett (310,000+)
109) Kate Elliott (300,000+)
110) Ernest Cline (300,000)
111) J.V. Jones (250,000+)
112) Mark Lawrence (250,000+)
113) Michael J. Sullivan (250,000+)
114) Karen Miller (250,000+)
115) Gail Z. Martin (180,000+)
116) Daniel H. Wilson (160,000+)
117) Scott Lynch (145,000+)
118 ) R. Scott Bakker (125,000+)
119) Glenda Larke (120,000+)
120) Elizabeth Moon (100,000+)