ERB Firsts
MARS (1–6) MARS (7–11) PELLUCIDAR (1–6) VENUS (1–5)
1A Princess of Mars7A Fighting Man of Mars1At the Earth's Core1Pirates of Venus
2The Gods of Mars8Swords of Mars2Pellucidar2Lost on Venus
3The Warlord of Mars9Synthetic Men of Mars3Tanar of Pellucidar3Carson of Venus
4Thuvia, Maid of Mars10Llana of Gathol4Back to the Stone Age4Escape from Venus
5The Chessmen of Mars11John Carter of Mars5Land of Terror5Tales of Three Planets
6The Master Mind of Mars6Savage Pellucidar

MARS SERIES

11 books  ·  1917–1964
A Princess of Mars A Princess of Mars DJ
10/10/1917
10,200 copies
The Gods of Mars The Gods of Mars DJ
9/28/1918
10,000 copies
The Warlord of Mars The Warlord of Mars DJ
9/27/1919
20,000 copies
Thuvia, Maid of Mars Thuvia, Maid of Mars DJ
10/13/1920
17,000 copies
The Chessmen of Mars The Chessmen of Mars DJ
11/29/1922
12,500 copies
The Master Mind of Mars The Master Mind of Mars DJ
3/10/1928
5,000 copies
A Fighting Man of Mars A Fighting Man of Mars DJ
5/15/1931
? copies
Swords of Mars Swords of Mars DJ
2/15/1936
4,000 copies
Synthetic Men of Mars Synthetic Men of Mars DJ
3/15/1940
3,500 copies
Llana of Gathol Llana of Gathol DJ
3/26/1948
9,225 copies
John Carter of Mars John Carter of Mars DJ
7/24/1964
? copies

PELLUCIDAR SERIES

6 books  ·  1922–1963
At the Earth's Core At the Earth's Core DJ
7/22/1922
17,000 copies
Pellucidar Pellucidar DJ
9/5/1922
10,000 copies
Tanar of Pellucidar Tanar of Pellucidar DJ
5/29/1930
? copies
Back to the Stone Age Back to the Stone Age DJ
9/15/1937
5,000 copies
Land of Terror Land of Terror DJ
5/1/1944
3,500 copies
Savage Pellucidar Savage Pellucidar DJ
11/25/1963
? copies

VENUS SERIES

5 books  ·  1934–1964
Pirates of Venus Pirates of Venus DJ
2/15/1934
5,068 copies
Lost on Venus Lost on Venus DJ
2/15/1935
5,000 copies
Carson of Venus Carson of Venus DJ
2/15/1939
3,500 copies
Escape from Venus Escape from Venus DJ
10/15/1946
20,000 copies
Tales of Three Planets Tales of Three Planets DJ
4/27/1964
? copies