It is very soon from now, on September 2-4, 2021, that you have an appointment with us, the 13th APACT 2021. Please mark the date on your diary to make sure that you are not missing an auspicious moment in Bangkok, Thailand. The organizing committee of the event has been working hard in the preparation and curiously looking forwards to welcoming you to our hometown as the host country. We are planning to entertain you with both academic and relaxing environment. The world needs your share and contribution in making this world a healthy public place to live on. The 13th APACT, 2021 will provide the way we can work together hands in hands in fighting with the most difficult health problem, tobacco smoking, the problem that deteriorates and shortens our life longevity and suffers our peaceful lifestyle. The problem that cannot be worked out by just a single people, organization or a country but absolutely needs coordination and collaboration amongst us, not only health professional but multi professionals.