Useful books on Infopath 2010

http://www.amazon.co.uk/s/?ie=UTF8&keywords=infopath+2010&tag=googhydr-21&index=stripbooks&hvadid=13682536068&hvpos=1t1&hvexid=&hvnetw=g&hvrand=1253176605106254066&hvpone=&hvptwo=&hvqmt=b&ref=pd_sl_8wb2cwk53k_b

http://www.bizsupportonline.net/blog/2010/12/top-5-bestsellers-infopath-sharepoint-books-2010/ – top five best sellers

http://www.bizsupportonline.net/infopath-2010-book.htm

http://www.filestube.com/i/infopath+2010+book – free books download for infopath 2010