If your in Nottingham is it work or are you visiting Perry Towers?
First Carlist War action with the Perries :) :clap: :clap:
Brassey's do an ECW uniforms illustrated using re-enactors so be a bit cautious & don't take everything as gospel. There are however lots of lovely colour photos in it. Caliver has a 'Top Ten' type list of recommended ECW titles on their site which covers most of the 'must get ECW books'.
The recent 'The Road to Marston Moor' also covers the 1644 northern campaign & apparently has the most up to date research available. Not entirely coincidentally it's next in my reading pile so I can fill you in next week!
The Osprey MAA is an old book now, & quite a bit of information in it is inaccurate, as Timmo implies....