We recommend the following images size for better experience and fits in the content area –

In Trending Mag we have Two images size .

Banner / Slider :- 800 X 600 px

For Bigger sections 1140 X 640 px

Note: If you’ve switched the theme, don’t forget to regenerate all the thumbnails. Otherwise, images will be displayed in undesirable sizes. Use Regenerate Thumbnails, plugin to regenerate thumbnails.