Before things get REALLY out of hand, there is something that needs to be said - Wing Chun eats it's own! What one person says is a good book another will set on fire in disgust because for a style that is supposedly very simple there are about 3,000,000,0002 variations and factions on it That said, there are a plethora out there and this site has a lot of them and does not appear to be TOO stylistically biased to one or the other http://www.everythingwingchun.com/wing-chun-ving-tsun-books-s/63.htm
Depends what you mean/want airweaver. A nice introductory type work is the book WCKF by Ohara Pub. under James Lee's name but actually written by Bruce. Of course coming from these guys a few of the actual techniques -and it's pointed out- aren't "pure" but it presents theories,concepts,basics and drills with good photos/illustrations. Don't know if it's still in print.
This is a great book, not written from the viewpoint of a particular lineage. Also Alan Gibson has a good rep in the UK. He's a Wong Shun Leung lineage but has expereince of others before heading down that particular road! [ame="http://www.amazon.co.uk/Wing-Chun-Works-Alan-Gibson/dp/0953489523/ref=sr_1_1?ie=UTF8&qid=1397999778&sr=8-1&keywords=wing+chun+the+works"]Wing Chun: the Works: Amazon.co.uk: Alan Gibson: Books[/ame]
If you want historical information, there's a ton of high quality work here for free http://chinesemartialstudies.com/ If you're after technique orientated stuff I'd argue that a video would be more useful.
Agree with Ben. Here's the problem with Southern CMA books, imho...I've got a whole library of them. Not every penny was well spent... They generally fail to illustrate critical concepts. Some are OK. I think this is true enough in books on Hung ga, Jow ga, CLF...bad English translations and useful pictures side, it's hard to pick up the important bits from text/pictures unless you already have a first-hand (instructional) understanding...but particularly Wing Chun books are lacking with regards to useful info (there is often a lot of theory, and less practical application info). Some would argue it's hard to fill a whole book with Wing Chun concepts without borrowing from outside WC...but anyway. What I really mean by this is that as I read through the books, I've noticed the WC side of the library to be missing a lot of conceptual material that is critical for learning either the basics, or the advanced material that somebody who already has the basics would want to get a good ROI on their purchase. I say that having spent a lot of money on books, including WC books, that were just terrible. SO...I'd recommend not just looking at WC books in particular, but examining a broader range of Southern CMA books...examining WC in the larger context of Southern CMA is valuable. I know that certain WC buddies of mine have REALLY expanded their understanding this way of going "outside the box". I'd also recommend reading Bruce Lee's notes and the posthumously compiled/published Tao of JKD...because out of THAT book, you'll get at least some insight into the mind of a man who took his own WC experience to the next level, instead of reading the same retreading of WC theories, legends, etc.