Published by Helion & Co and Bicorne Miniature these fast play ECW rules have been written by a James Daniels a Sealed Knot Re-enactor and owner of Bicorne Miniatures.
You can use your armies as based for popular rulesets such as Pike and Shot but with a dose of period reality regarding formations and tactics.
The book is in good condition other than a small fold / dog ear on right corners of front cover. See photos.
I bought these for an ECW project I started about 10 years ago. Suffice to say most of the miniatures are still in the lead pile of shame. So as I'm having a rule book clear out offering these and many others for sale.