Should I buy this book for research?

They allow you to preview quite a few pages, which should give you a sense of whether it will be useful to you. You can also go to Amazon and check out reader reviews for this book and other Osprey titles (note: it also seems to be cheaper on Amazon, so there's less of an investment).

Unless their company history is a complete fabrication, they've been publishing for 40 years, so I doubt they're a sham. Also, my public library carries a number of books from this publisher, so are you sure your library can't get hold of them? Even if they aren't part of the collection, they might be available from interlibrary loan.

It's alright, you can trust Osprey.

They are based in Oxford (England) and are a well known and trusted name over here.

Osprey publish very good operational accounts of battles and campaigns. Their maps are also very helpful. There will also be some details of weapons and commanders but very little social history.

Osprey do not analyze or provide much background history but they are good for their purpose. I once used one on the Battle of 1st Bull Run - told me what happened and where.

Osprey is pretty good - a lot of re-enactors use the books to research costume/uniform, though with the proviso that it is a starting point rather than fount of all knowledge.

Stackpole is another reliable publisher of US military history.

You can go ahead. I've been using them for years. Osprey is a valuable source of information.

I'm missing this HUGE typo. What is it exactly?

Ditto.

Osprey are good and really helpful for uniform details and solid basics.

Did you let them know about the error? They would be mortified and want to correct it.

This by any chance wouldn't be the fact that the Brits spell Armor as Armour? Would it?