The Treason of Isengard

0-04-440396-8

1989 Hardback Edition

Unwin Hyman
Cover image for 1989 Hardback Edition
First: 1
Last: 1
tbn

0-261-10219-2

1991 Hardback Edition

HarperCollins
Cover image for 1991 Hardback Edition
First: 1
Last: 2
tbn

0-00-736531-4

2010 Hardback Edition

HarperCollins
Cover image for 2010 Hardback Edition

0-06-339084-1

2024 Centenary Boxed Edition

HarperCollins
Cover image for 2024 Centenary Boxed Edition
Cover illustration by John Howe
First year: 2024
First: 1
Last known: 1

HarperCollins B-Format Paperback Main Sequence

0-261-10220-6

1993 Paperback Edition

HarperCollins
Cover image for 1993 Paperback Edition
Cover illustration by Robert Garland
1 (1993)
tbn
Cover image for 1993 Paperback Edition
Cover illustration by John Howe
First: 2
Last known: 6
tbn

2002 Paperback Edition

HarperCollins
Cover image for 2002 Paperback Edition
Cover illustration by John Howe
First: 1
Last known: 9
series cover • tbn

2015 Paperback Edition

HarperCollins
Cover image for 2015 Paperback Edition
Cover illustration by John Howe
series cover
Cover image for 2015 Paperback Edition
First year: 2024
First: 32
Last known: 32
series cover