Tobias Capwell, the armour scholar who jousts, has a book out on his favourite sport. I wish there were people with a similar combination of skills writing about ancient armour!
Tobias Capwell, Arms and Armour of the Joust. Arms and Armour Series. Royal Armouries, Leeds, 2018. 96 pages, ISBN-13 978-0948092831. You can find a copy on Bookfinder (it is too new to be on Biblio).
Edit 2018-06-23: Fixed broken link.