Hi John,
Thanks for the info. I simply put the word "poster" into the translator.
Would something like this work better?: الإعلان عن السلع
This one just means "advertisement" or literally "advertisement for goods." The most common word used among poster collectors is افيشات which is borrowed from the French
affiche with the Arabic plural -at for inanimate objects added to make the word
affichat; Google recognizes this as "posters" if typed in Arabic as a request for English translation, but rarely returns as an Arabic translation for the English word. If you really want to nail it down to make it clear what type of poster you have in mind, you could type for example افيشات سينمائية literally "cinema posters" and even GT will recognize that as "movie posters." Travel posters might be closer to the example you just gave إعلانات السفر e'lanat al-safar "travel ads," but I think more likely افيشات للسفر affichat lil-safar "travel posters." Most of my spoken experience about posters by far has been about movie posters, so I'm sure there are lots of things I don't know about common Arabic terminology for travel posters.