Bramble and Maggie by Jessie Haas is the perfect young horse lover book!
Bramble is a pony at a riding school who gets tired of going round in circles while teaching lessons. So she's given up for adoption but it must be the right child. Maggie wants her first horse and she matches perfectly with Bramble.
As a riding instructor, I found this heart-warming story realistic and a fun read, sure to please youngsters wanting their own pony.
There are more books in the series. Visit the author's site at http://www.jessiehaas.com/