Well here are 4 books for you:
I've read the first book as it was in my local store (W.H. Smith) when I went shopping one day, so I purchased it just because it was there.
http://www.amazon.co.uk/How-Build-A...&qid=1432824838&sr=1-2&keywords=basic4android
http://www.amazon.co.uk/Basic4Andro...&qid=1432824838&sr=1-1&keywords=basic4android
http://www.amazon.co.uk/Programiraj...&qid=1432824838&sr=1-6&keywords=basic4android
http://pennypress.co.uk/?page_id=11#!/B4A-electronic-edition/p/50862853/category=2304260
I've read the first book as it was in my local store (W.H. Smith) when I went shopping one day, so I purchased it just because it was there.
http://www.amazon.co.uk/How-Build-A...&qid=1432824838&sr=1-2&keywords=basic4android
http://www.amazon.co.uk/Basic4Andro...&qid=1432824838&sr=1-1&keywords=basic4android
http://www.amazon.co.uk/Programiraj...&qid=1432824838&sr=1-6&keywords=basic4android
http://pennypress.co.uk/?page_id=11#!/B4A-electronic-edition/p/50862853/category=2304260