On September 28, 2018, the Slovenian Post released a series of 3 stamps and a souvenir sheet on the theme "Fauna" dedicated to domestic animals.
On September 26, 2018, the Isle of Man Post Office issued a series of postage stamps in honor of the 70th birthday of HRH Prince Charles.
On September 21, 2018, the Spanish Post issued a postage stampto honour the 150th anniversary of the death of of General Leopoldo O’Donnell y Jorris (1809-1867).
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.
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”.