Required picture sizes: aithlife Groups Personal profile image: 1024px x 1024px Personal profile header: 2560px x 500px Group profile image: 1024 x 1024px Group header: 2560px x 500px Bulletin media: 1200px x 628px Newsletter media: 1200px x 628px Media post in group feed: 1200px x 628px Event cover photo: 2560px x 500px   Faithlife Proclaim 16x9 slides: 1920px x 1080px 4x3 slides: 1024px x 728px   For more information, see the article https://support.faithlife.com/hc/en-us/articles/360025257232-What-Image-Dimensions-Should-I-Use-