Top authors ranked by number of GB books not published in US

BUGGY BETA CODE - DO NOT TAKE TOO SERIOUSLY

Data from ISFDB, code by @ErsatzCulture

Top authors, ranked by all published books

1	uncredited	206
2	Terrance Dicks	74
3	Peter Haining	53
4	Josh Reynolds	47
5	R. Chetwynd-Hayes	45
6	Michael Moorcock	44
7	Nick Kyme	44
8	Gav Thorpe	42
9	Graham McNeill	40
10	David Annandale	33
11	Garry Kilworth	32
12	Eric Brown	31
13	Ian Whates	31
14	John French	31
15	Guy Haley	31
16	Robert Rankin	30
17	Justin Richards	30
18	H. G. Wells	29
19	Edgar Allan Poe	28
20	Dan Abnett	27
21	Graham Masterton	26
22	Paul Magrs	25
23	David Guymer	25
24	Kenneth Bulmer	24
25	Tanith Lee	24
26	Robert E. Howard	24
27	Ian Watson	23
28	H. P. Lovecraft	22
29	Shaun Hutson	22
30	Jacqueline Rayner	22
31	Michel Parry	21
32	Terry Pratchett	21
33	Adam Roberts	21
34	Aaron Dembski-Bowden	21
35	Robbie MacNiven	21
36	Richard Laymon	20
37	Gary Russell	20
38	Steve Lyons	20
39	Trevor Baxendale	20
40	Ramsey Campbell	19
41	Storm Constantine	19
42	Malorie Blackman	19
43	Stephen Baxter	19
44	Robert Holdstock	18
45	Mary Williams	18
46	Mark Morris	18
47	Paul Finch	18
48	Herbert van Thal	17
49	Richard Davis	17
50	Louise Cooper	17

Top authors, ranked by novels only

1	Terrance Dicks	69
2	Robert Rankin	29
3	Garry Kilworth	24
4	Justin Richards	24
5	Graham Masterton	19
6	Shaun Hutson	18
7	Trevor Baxendale	18
8	Paul Magrs	18
9	Nigel Robinson	17
10	Jonathan Gash	16
11	Dave Stone	15
12	Jacqueline Rayner	15
13	Bailey Bradford	15
14	uncredited	14
15	Louise Cooper	14
16	Freda Warrington	14
17	Malorie Blackman	14
18	Gary Russell	14
19	David A. McIntee	14
20	Mark Morris	14
21	Kate Orman	13
22	Adam Roberts	13
23	Guy Adams	13
24	Ian Marter	12
25	Peter Tremayne	12
26	William Horwood	12
27	Christopher Bulis	12
28	Steve Lyons	12
29	Ali Sparkes	12
30	B. Strange	12
31	Sarah Luddington	12
32	Michael Scott	11
33	Paul Cornell	11
34	Andrew Harman	11
35	Mike Tucker	11
36	Terry Pratchett	10
37	Samantha Lee	10
38	Ian Livingstone	10
39	Fay Sampson	10
40	Joe Donnelly	10
41	Gareth Roberts	10
42	Paul Leonard	10
43	Stephen Cole	10
44	Colin Brake	10
45	Tanith Lee	9
46	E. C. Tubb	9
47	Philip Curtis	9
48	John Peel	9
49	Philip G. Williamson	9
50	Jim Mortimore	9

Top authors, ranked by novels only, excluding major multimedia/multi-author franchises (Dr Who, Warhammer, etc)

1	Robert Rankin	29
2	Garry Kilworth	24
3	Graham Masterton	19
4	Shaun Hutson	18
5	Jonathan Gash	16
6	Bailey Bradford	15
7	uncredited	14
8	Freda Warrington	14
9	Malorie Blackman	14
10	Louise Cooper	13
11	Adam Roberts	13
12	Peter Tremayne	12
13	William Horwood	12
14	Ali Sparkes	12
15	B. Strange	12
16	Sarah Luddington	12
17	Michael Scott	11
18	Nigel Robinson	11
19	Andrew Harman	11
20	Paul Magrs	11
21	Guy Adams	11
22	Terry Pratchett	10
23	Samantha Lee	10
24	Fay Sampson	10
25	Joe Donnelly	10
26	Tanith Lee	9
27	E. C. Tubb	9
28	Philip Curtis	9
29	Philip G. Williamson	9
30	Mark Morris	9
31	Maria Palmer	9
32	Julia Gray	9
33	Marcus Sedgwick	9
34	J. A. Hawkings	9
35	John Lymington	8
36	Nicholas Fisk	8
37	Terrance Dicks	8
38	Robert Holdstock	8
39	William Thomas Webb	8
40	Phillip Mann	8
41	Joe Dever	8
42	Storm Constantine	8
43	Barbara Erskine	8
44	Jenny Jones	8
45	Lesley Howarth	8
46	Jacqueline Rayner	8
47	Alex Scarrow	8
48	Sophie McKenzie	8
49	Rob Buckman	8
50	Niall Teasdale	8

Top authors most active in the 1970s, ranked by novels only, excluding major franchises

1	John Lymington	8
2	Terrance Dicks	8
3	Robert Holdstock	8
4	William Thomas Webb	8
5	Patrick Moore	6
6	W. D. Pereira	6
7	Eric C. Williams	5
8	Arthur Friggens	5
9	Philip E. High	5
10	Christopher Hodder-Williams	5
11	Norman Hunter	4
12	Robert Nye	4
13	Mark Carrel	4
14	Mick Norman	4
15	Donald S. Rowland	4
16	W. W.	4
17	G. J. Barrett	4
18	Terry Greenhough	4
19	L. P. Reeves	4
20	Robert Hendrie Wilson	4
21	Michael Elder	4
22	Kenneth Bulmer	3
23	Richard Carpenter	3
24	Richard Cowper	3
25	Troy Howard	3
26	Errol Lecale	3
27	Mark Bannon	3
28	Alan Barclay	3
29	Michael G. Coney	3
30	David S. Garnett	3
31	Alex Random	3
32	Roland Starr	3
33	Nina Beachcroft	3
34	Saul Dunn	3
35	James Wallace	3
36	Jack D. Shackleford	3
37	John Paton	3
38	Phil Smith	3
39	David Wiltshire	3
40	Mark Jales	2
41	Archie Roy	2
42	Barbara Euphan Todd	2
43	Dennis Wheatley	2
44	Leonard Daventry	2
45	Elliott O'Donnell	2
46	Jay Williams	2
47	Colin Wilson	2
48	Robertson Davies	2
49	Raymond Hitchcock	2
50	Andrew Sinclair	2

Top authors most active in the 1980s, ranked by novels only, excluding major franchises

1	Peter Tremayne	12
2	Fay Sampson	10
3	Philip Curtis	9
4	Nicholas Fisk	8
5	Guy N. Smith	7
6	Ian Watson	7
7	Nathan Elliott	7
8	Nigel Frith	6
9	James Darke	6
10	R. Chetwynd-Hayes	5
11	Emma Tennant	5
12	Marc Alexander	5
13	D. G. Finlay	5
14	Clare Cooper	5
15	Christopher Evans	5
16	J. H. Brennan	5
17	John Gordon	5
18	Bernard King	5
19	William Mayne	4
20	Stuart Gordon	4
21	Richard Lewis	4
22	Victor Kelleher	4
23	Gerald Suster	4
24	Colin Greenland	4
25	Robert Leeson	4
26	Graham Dunstan Martin	4
27	Stephen Bowkett	4
28	Monica Dickens	4
29	Ann Jungman	4
30	Penelope Farmer	3
31	Neville Kea	3
32	Jo Bannister	3
33	Richard Cooper	3
34	Hugh Morgan	3
35	Janice Elliott	3
36	Martin Noble	3
37	Berlie Doherty	3
38	Brian Parvin	3
39	Patricia Wendorf	3
40	Christopher Hyde	3
41	Alison Spedding	3
42	Michael Falconer Anderson	3
43	Andrew Neiderman	3
44	Lyndan Darby	3
45	V. C. De Vere	3
46	Ben Elton	3
47	Michael Moorcock	2
48	Margaret Mahy	2
49	Keith Roberts	2
50	Mary Williams	2

Top authors most active in the 1990s, ranked by novels only, excluding major franchises

1	Robert Rankin	29
2	Garry Kilworth	24
3	Jonathan Gash	16
4	Freda Warrington	14
5	Louise Cooper	13
6	William Horwood	12
7	Michael Scott	11
8	Nigel Robinson	11
9	Andrew Harman	11
10	Joe Donnelly	10
11	Philip G. Williamson	9
12	Mark Morris	9
13	Maria Palmer	9
14	Phillip Mann	8
15	Joe Dever	8
16	Storm Constantine	8
17	Jenny Jones	8
18	Lesley Howarth	8
19	Anthony Masters	7
20	John Grant	7
21	Peter Beere	7
22	Jonathan Wylie	7
23	Caiseal Mór	7
24	Douglas Hill	6
25	Laurence James	6
26	John Brosnan	6
27	James Follett	6
28	Hugh Cook	6
29	Steve Harris	6
30	John Whitbourn	6
31	Pete Johnson	6
32	Frances Gordon	6
33	Philip Gross	6
34	Virginia Ironside	5
35	Peter Morwood	5
36	Hugh Scott	5
37	Charles Ashton	5
38	Chaz Brenchley	5
39	Jean Ure	5
40	Daniel Easterman	5
41	Michael Scott Rohan	5
42	Philip Caveney	5
43	Graham Edwards	5
44	Russell Hoban	5
45	Sue Welford	5
46	Rob Childs	5
47	Robert E. Vardeman	4
48	D. G. Compton	4
49	Annie Dalton	4
50	Max Marlow	4

Top authors most active in the 2000s, ranked by novels only, excluding major franchises

1	Shaun Hutson	18
2	Malorie Blackman	14
3	Adam Roberts	13
4	B. Strange	12
5	Terry Pratchett	10
6	Samantha Lee	10
7	Julia Gray	9
8	Barbara Erskine	8
9	Jacqueline Rayner	8
10	Gwyneth Jones	7
11	Jane Welch	7
12	Susan Gates	7
13	Chris Wooding	7
14	Alan Gibbons	7
15	John Dougherty	7
16	Alex Cliff	7
17	Steve Cole	7
18	Tom Arden	6
19	Stephen Theaker	6
20	Malcolm Pryce	6
21	Catherine Webb	6
22	Cherith Baldry	6
23	Paul McAuley	6
24	Robin Price	6
25	A. J. Marshall	6
26	Jack Trelawny	6
27	Dan Jerris	6
28	Andrew Crumey	5
29	Colin Brake	5
30	Kit Berry	5
31	Gary Gibson	5
32	Kes Gray	5
33	Andy Stanton	5
34	Vivian French	5
35	Judy Allen	4
36	Rob Grant	4
37	Trevor Baxendale	4
38	Liz Williams	4
39	Francine Pascal	4
40	Charles Butler	4
41	Steve Cockayne	4
42	Mark E. Cooper	4
43	Susan Price	4
44	Sally Prue	4
45	Ros Asquith	4
46	Rhiannon Lassiter	4
47	Andy Secombe	4
48	Ashok K. Banker	4
49	Justin Daw	4
50	Stefan Jakubowski	4

Top authors most active in the 2010s, ranked by novels only, excluding major franchises

1	Graham Masterton	19
2	Bailey Bradford	15
3	uncredited	14
4	Ali Sparkes	12
5	Sarah Luddington	12
6	Paul Magrs	11
7	Guy Adams	11
8	Tanith Lee	9
9	E. C. Tubb	9
10	Marcus Sedgwick	9
11	J. A. Hawkings	9
12	Alex Scarrow	8
13	Sophie McKenzie	8
14	Rob Buckman	8
15	Niall Teasdale	8
16	Paul Stewart	7
17	Sarah Mussi	7
18	S. A. Pavli	7
19	T. J. Sedgwick	7
20	Simon Clark	6
21	James Barclay	6
22	A. J. Dalton	6
23	Joss Stirling	6
24	Nick Brown	6
25	Sarah Rayne	6
26	Anna Belfrage	6
27	David Wingrove	6
28	Patricia Fanthorpe	5
29	David Britton	5
30	Simon A. Forward	5
31	G. P. Taylor	5
32	Sam Bowring	5
33	Thomas Emson	5
34	Stephen Deas	5
35	Ana Fischel	5
36	Will Macmillan Jones	5
37	Josh Reynolds	5
38	Sam Stone	5
39	Gareth Wiles	5
40	Gavin G. Smith	5
41	Adrian Tchaikovsky	5
42	J. D. Oswald	5
43	Ian W. Sainsbury	5
44	Kevin Partner	5
45	Michael Penmore	5
46	Stephen Hunt	4
47	Simon Morden	4
48	Kim Lakin-Smith	4
49	Jaine Fenn	4
50	Paul Kearney	4

Top authors most active in the 2020s, ranked by novels only, excluding major franchises

1	Cixin Liu	1
2	Jodi Taylor	1
3	Selja Ahava	1
4	Jane Alexander	1
5	Neal Asher	1
6	Peter Bunzl	1
7	J. M. Coetzee	1
8	Katharine Corr	1
9	Andrew Ewart	1
10	Jackson Ford	1
11	Juliet Grames	1
12	Sophie Green	1
13	Elizabeth N. Harris	1
14	Jeremy P. Horgan	1
15	Jennifer Macaire	1
16	Martin MacInnes	1
17	Emily St. John Mandel	1
18	Claire McKenna	1
19	Coral Ripley	1
20	Nandi Taylor	1
21	Francine Toon	1
22	Trudi Tweedie	1
23	Dan Walker	1
24	Kawai Strong Washburn	1
25	Laura Weymouth	1