Other resources (including some that are owned/created by others as noted)
Demystifying the Bridle: The Tale of a Googley-Eyed Fish (video showing how to put a bridle together)
Gillian Higgins – Free Horses Inside Out Children’s Pack (suitable for grown ups too!) –
Pally Ponies – Free resources available
Deborah Stacey – Horse Lover’s Math (available in US imperial units and in metric units)
The Para Vaulter 