The campaign will consist of three elements — Thai culture, the Thai way of life and the Thai experience.
It will be aimed at educating foreign tourists about Thai culture and lifestyle.
TAT governor Thawatchai Arunyik is confident the tourism industry will fully recover next year on the back of political stability.
Next year's tourism revenue target of 2.2 trillion baht should be achieved next year even though this year's target of 2 trillion is now expected to be missed, he said.
Mr Thawatchai said the political impasse led the TAT to revise down its 2014 tourism target many times, and now its goal is 1.9 trillion baht in revenue and 25.5 million arrivals, down from 28 million arrivals projected earlier.
The TAT revealed that forward bookings related to tourism services dropped by 18% this month and should fall by 12% and 6.8% in September and October, respectively.
Mr Thawatchai said the TAT planned to boost spending per head of Asian travellers by 5% to 5,040 baht a day next year, with length of stay of three or four days per trip.
If the government approves an extension of visa stays to 60-90 days for European travellers from 30 days, it will help to prolong their stay here, meeting demand by European tourists who prefer to travel throughout Asean.
For the 2015 campaign, the TAT will present seven core products including food, art and culture and Thai boxing. A new marketing activity will be launched each month next year.
Each of the 27 international TAT offices worldwide will promote key activities as well as offer incentives to attract foreign travellers to Thailand.
It will also team up with department stores, duty-free shops and credit-card operators to promote Thailand as a shopping destination.
It will meet with the Thai Hotels Association and the Association of Thai Travel Agents for cooperation and closely work with the Culture and Interior ministries.