Yes, several but my favorites are Blessed are the Foals by M. Phyllis Lose, VMD and Foal to Five Years by Ann Hyland. I think there's another, Foal to Two Years or maybe it's a later edition of the Foal to Five - that's originally a 1980 book.
appreciated. I have written them down and will be going on Amazon later.
I thought of Blessed are the Foals.... I know Blessed are the Brood Mares is an excellent book.