There are two books on AMAZON
1. https://www.amazon.com/B4A-Rapid-An...&qid=1484021457&sr=8-1&keywords=9781512296259
2. https://www.amazon.com/B4A-Ultra-fa...rd_wg=AaZYn&psc=1&refRID=AZRP7SVY336V7DS4TJ8N
titles are little different and price is not the same as well. Are those just older/newer version of the same book or two completely different books ? any ideas ?
ARTHUR
1. https://www.amazon.com/B4A-Rapid-An...&qid=1484021457&sr=8-1&keywords=9781512296259
2. https://www.amazon.com/B4A-Ultra-fa...rd_wg=AaZYn&psc=1&refRID=AZRP7SVY336V7DS4TJ8N
titles are little different and price is not the same as well. Are those just older/newer version of the same book or two completely different books ? any ideas ?
ARTHUR