This is a business book introducing 38 techniques to improve practical conversation skills. - Title: Superb Conversational Skills - Author: Tadashi Yasuda - ISBN: 9784905071354 - Contents: Introduces 38 practical techniques and training methods for everyday life. - Ranking: #1, Over 600,000 copies sold I read this once after purchasing it and have kept it on my bookshelf since. Please check the condition of the product in the photos. Thank you for looking.