A book that helps you understand interpersonal distance and learn techniques to avoid interference. - Title: Why Are People Always Interfering? And Who's Interfering Without Realizing It? - Author: Kentaro Hayashi - Theme: Interpersonal Relationships - Price: 1600 yen - ISBN: 978-4-8121-830-6 ※Interpersonal relationships are 90% about distance. This book is in beautiful condition, having been read only once. Thank you for looking.