Georgie and Spot Series:
Quite a long-running pony/school series about a girl called Georgie, her pony Spot and her friends and family. A mixture of holiday adventures, mysteries and school stories. I have tried to piece together the reading order which strangely does not correspond to the publishing order. 

PONYMAD SERIES RATING: 3 HORSESHOES

READING ORDER:

1) A PONY OF YOUR OWN
(LUTTERWORTH 1950)
ILLUSTRATED BY E. HERBERT WHYDALE
Reprinted as an Armada paperback.
EDITIONS PICTURED: 1st edition, 1960s paperback, 1970s paperback
SUMMARY: Georgie Kane is dismayed when she finds she is to go to The Grange School, especially as the girls there are all horse-mad and she is frightened of horses! But once there she soon begins to change her mind...and even ends up with a pony of her own!

2) PONIES AND HOLIDAYS
(LUTTERWORTH 1950)
ILLUSTRATED BY E. HERBERT WHYDALE
Reprinted as an Armada paperback.
EDITIONS PICTURED: 1st edition, paperback.
SUMMARY: Georgie is excited when her two school friends Patience and Susan arrive to stay for the summer. They look forward to lots of fun and riding. But then King Toby, Georgie's beloved cat disappears and the girls set out to search for him.

3) PONIES IN CLOVER
(LUTTERWORTH 1954)
ILLUSTRATED BY E. HERBERT WHYDALE
Reprinted as an Armada paperback.
EDITIONS PICTURED: 1st edition, 1960s paperback, 1970s paperback
SUMMARY: After being bolted with, Georgie regains her nervousness of riding. Even worse, a snooping journalist who has a downer on the school and its penchant for riding, is making trouble for the girls and their school.

4) PONIES AND MYSTERIES
(LUTTERWORTH 1953)
ILLUSTRATED BY BOWE
Reprinted as an Armada paperback.
EDITIONS PICTURED: 1st edition, 1970s paperback.
SUMMARY: Georgie and her friends get mixed up in a number of mysteries - and Georgie and Spot win their first rosette!

5) PUZZLE OF PONIES
(LUTTERWORTH 1964)
ILLUSTRATED BY BOWE
Reprinted as an Armada paperback.
EDITIONS PICTURED: 1st edition, 1970s paperback.
SUMMARY: More excitement and horsy mysteries for the friends and their ponies.

6) PONY FROM THE FARM
(LUTTERWORTH 1954)
ILLUSTRATED BY JOHN RAYNES
Reprinted as an Armada paperback.
EDITIONS PICTURED: 1st edition, 1960s paperback, 1970s paperback
SUMMARY: Susan and Ermyn are staying with Georgie over Christmas.

7) PONY CLUE
(LUTTERWORTH 1955)
ILLUSTRATED BY JOHN RAYNES
Reprinted as an Armada paperback.
EDITIONS PICTURED: 1st edition, 1970s paperback.
SUMMARY: There is trouble for the school when ponies start to go missing. It is up to the donkey Petronella to save the day!

8) PONY ISLAND
(LUTTERWORTH 1957)
ILLUSTRATED BY JOHN RAYNES
Reprinted as an Armada paperback.
EDITIONS PICTURED: 1st edition, 1960s paperback, 1970s paperback
SUMMARY: George and her family, along with best friend Susan, go to stay at her great grandparent's rambling old house in Cornwall. They are fascinated by the small island nearby, but when exploring it a flood causes them to be marooned there!

9) THE VANISHING PONY
(LUTTERWORTH 1958)
ILLUSTRATED BY JOHN RAYNES
Reprinted as an Armada paperback.
EDITIONS PICTURED: 1st edition, 1970s paperback.
SUMMARY: A local pony disappears and when the girl's horses get out it seems they too may have vanished...

10) SECRET OF PONY PASS
(LUTTERWORTH 1965)
ILLUSTRATED BY JOHN RAYNES
Reprinted as an Armada paperback.
EDITIONS PICTURED: 1st edition, 1970s paperback.
SUMMARY: The friends set out for a riding holiday in Wales, but when they arrive things start to go wrong:. First there is no-one to meet them at the stables and they see the ghost of Pony Pass!

Collectors Info:
The books were published first as attractive hardbacks. They were subsequently reprinted by Armada in paperback form, first in the 1960s with illustrated pictorial covers, then in the 1970s with photo covers.

First editions are quite rare (although though not usually very expensive), but are worth pursuing for the very nice jackets, The editions most commonly seen now however are the 1970s Armada paperback editions. Most of the paperbacks are quite easy to find in the UK although one or two titles are harder than others (the last 3 possibly being the least seen) and the 1960s ones are more elusive than the later paperbacks. The books are all quite a bit harder to find outside of the UK, especially the hardbacks.

Farthingale Series:
School/pony series about a girl called Terry.

1) FIREWORKS AT FARTHINGALE
(NELSON 1954)
Reprinted in hardback by Nelson
ILLUSTRATED BY ROBERT HODGSON
EDITIONS PICTURED: 1st edition, Nelson reprint
SUMMARY: Like The Grange School  in the Georgie series, Farthingales is a school obsessed by horses! Terry (like Georgie a little nervous of horses) finds that life there is somewhat problematic to say the least!

2) THE FARTHINGALE FETE
(NELSON 1955)
Reprinted in hardback by Nelson
ILLUSTRATED BY A. H. WATSON
EDITIONS PICTURED: 1st edition, Nelson reprint
SUMMARY: Terry is organising the school fete but things are not going well...

3) THE FARTHINGALE FEUD
(NELSON 1957)
ILLUSTRATED BY A. H. WATSON
Reprinted in hardback by Nelson
Fairly rare.
EDITIONS PICTURED: 1st edition,
SUMMARY: Terry and her friend find themselves on opposing sides of a school feud.

4) THE FARTHINGALE FIND
(NELSON 1961)
ILLUSTRATED BY A. H. WATSON
Possibly not reprinted
Rare
EDITIONS PICTURED: 1st edition,
SUMMARY: The excitement of a hidden treasure is marred by a new head mistress who bans riding at the school!

Collectors Info:
There were no paperback editions. Like the 'Belinda' series, the books are harder to find than the 'Georgie' series, although not extremely rare and usually quite low cost. Occaisionally copies can be found outside the UK also. Far the rarest of the four is the last one which is usually a lot more expensive than the others.

Belinda Series
Pony series about a girl called (you guessed it) Belinda. Not as well-known or popular as the 'Georgie' series.

1) A PONY FOR BELINDA
(LUTTERWORTH 1959)
ILLUSTRATED BY JOHN RAYNES
SUMMARY: Belinda, having lived with her granny for most of her life, finds everything changing for her when she is sent to live with her real family, the Gordons. It is hard to adjust to her new life but when she gets a pony of her own things begin to look up.

2) BELINDA RIDES TO SCHOOL
(LUTTERWORTH 1960)
ILLUSTRATED BY JOHN RAYNES
SUMMARY: Belinda continues to adjust to her new life and as a pony owner. However things start to go wrong for the Gordon family: Mr Gordon sprains his ankle and can't work, the family have money problems and Janice's dreams of starting her own riding school seem to be disappearing due to lack of funds. Belinda feels she must sell her beloved Zephry to help her new family, but her kindness to a pair or odd ball children proves to have unexpected and exciting results!
PONYMAD RATING: 2 HORSESHOES

3) BELINDA'S OTHER PONY
(LUTTERWORTH 1961)
ILLUSTRATED BY JOHN RAYNES
SUMMARY: Janice at last realises her dream of opening her own riding school. But once again, things still don't go smoothly. Belinda also now has two ponies to ride!

4) BELINDA WINS HER SPURS
(LUTTERWORTH 1962)
ILLUSTRATED BY JOHN RAYNES
SUMMARY: A rival riding school opens and starts stealing Janice's pupils. It is up to Belinda to solve the problem.

Collectors Info:
As far as I know they were never reprinted in either hardback or paperback. Not as common as the 'Georgie' books but still fairly easy to find in the UK. Price can vary widely.so it is worth shopping around before buying.  Harder to find in the USA and Australia, although by no means impossible.