01639nam a2200277Ia 4500 TVU_9194 210423s9999 xx 000 0 und d 0071476008 9780071476003 eng 658.8501 G368 Gerhard Gschwandtner The psychology of sales success Learn to think like your customer to close every sale Gerhard Gschwandtner New York McGraw-Hill 2007 vii, 269 p. ill. 24 cm If you're a sales professional who wants to succeed, you can benefit from these familiar words: Know thyself.