facebook photo size

Ideal photo sizes on Facebook
previously, facebook was mostly text and shared links. but now, images are becoming more and more important. however, each type of photo on facebook such as cover photo, profile picture and timeline image has its own size. thus, if the images you upload are appropriate for their own size, they
Size, size of the standard image for Facebook Fanpage is how much?
every day we still upload photos regularly on facebook, personal accounts, fanpage, create ads - ads ... but do you know about the standard size of photos on facebook fanpage? or how to upload the best quality photos to fanpage to bring maximum efficiency to the campaign?