International Federation for Psychotherapy (IFP) is a worldwide, interdisciplinary and intercultural umbrella organization for psychotherapy. On behalf of IFP, we are much honored to invite you to attend the 21st IFP World Congress of Psychotherapy, held from May 9 to 11 in Shanghai, China, with the theme "Psychotherapy Contributing to Global Health". During the last few months, IFP has attracted highly prestigious scholars and experts in psychotherapy from over 20 nations and regions. We have received positive feedbacks from various disciplines, such as psychiatry, psychotherapy, medicine, culture, health, education, philosophy, ethics and laws, and so on. Nearly 60 symposiums and workshops are carefully prepared for you to exchange ideas, share developments, promote global health and enhance our friendship. Moreover, Shanghai is a unique and really attractive venue. As the economic capital of China, it has open, energetic and innovative cultural atmosphere and life style. Spring is also the best season for both meeting and tourism. All participants and accompanying persons can take this chance to know more about Shanghai and other areas. For example, we offer you touristic assistance to visit beautiful places like Yunnan, Guilin and Xi'an. The 21st IFP will be a great feast for all those who are working in psychotherapy and interested in it. It is a privileged opportunity that shouldn't be missed. Your participation will make all the preparatory efforts worthwhile and the congress a great success for psychotherapy.