Offensive Miniatures

Offensive Miniatures founder, Dave's go-to resources for historically accurate uniforms:
 
⚔️Osprey uniform books (Men-at-Arms, Campaign Series, etc.): affordable, everywhere, and surprisingly detailed whether bought new or second-hand.
 
⚔️Blandford uniform guides: older classics from the 70s & 80s, usually easy to find and easy on the wallet.
 
⚔️The internet: Pinterest boards, specialist forums, and even unit-specific books if you dig a little deeper.