On September 18, 2018, the Luxembourg Post issued a stamp in honor of Postage Stamp Day.
On September 7, 2018, the Latvian Post issued a commemorative postage stamp "Curonian Kings".
13 сентября 2018 года почта Новой Каледонии выпустила почтовую марку в честь 20-летия Ассоциации по разведению и продвижению лошадей и мулов (UPRA EQUINE) в Новой Каледонии.
On September 8, 2018, the Estonian Post issued a double-sided prestamped postcard dedicated to the 95th anniversary of the Tallinn Hippodrome.
China Post issued a set of special stamps themed on the Chinese classic Book of Songs on September 8, 2018
On August 31, 2018, the post office of Serbia issued a postage stamp dedicated to the Ljubičevo Equestrian Games.
On August 24, 2018, the post office of Austria released another souvenir sheet from the series "The history of postal transport"
On August 23, 2018, the post of Belarus issued a postage stamp “The arms of Ivanov” from the series “Coats of arms of the cities of Belarus”.
Australia Post has designed a special stamp to mark the record-breaking 26th consecutive race win by Australian mare Winx, run on 18 August 2018.
On August 15, 2018, the Bulgarian Post released a s/s dedicated to the victory of the Bulgarian Khan Tervel over the Arab army, which laid siege to Constantinople in 718.