The TIBF started its activity officially on Wednesday at 10:00 a.m. and will run until May 20.
About 3,000 domestic and foreign publishers are taking part in the 34th Tehran International Book Fair.
More than 1,500 publishers are showcasing their books at the exhibition while some 1,200 publishers display their books online.
Tajikistan is the special guest of the TIBF in this edition.