Bridle

The complete book of bits & bitting

Elwyn Hartley Edwards.

Choosing the Right Bit for Your Horse (Storey Country Wisdom Bulletin, a-273)

Jessica Jahiel

Bridlework

Robert Steinke, Robert H. Steinke

Mouths and Bits

Toni Webber

A bit of information: Texan Greg Darnall discusses bits and bitting

by Fran Devereux Smith.

Bitting: in theory and practice

ElwynHartley Edwards.

Philippi Invernizi Romani De fraenis eorumque generibus et partibus apud veteres (diatriba).

Filippo Invernizi

All About Bits and Bridles (Allen Photographic Guides)

Carolyn Henderson

Bridle Rosettes: Two Centuries of Equine Adornment

E. Helene Sage

The Allen Illustrated Guide to Bits and Bitting (Allen Illustrated Guides)

Hilary Vernon