# Thumbnails layout > A PhotoRobot Viewer layout with a strip of image previews next to the main view. Category: Software. A thumbnails layout shows image previews in a horizontal or vertical strip beside the main viewer area, like a classic product gallery. Clicking a thumbnail shows that image in the main view. ## How PhotoRobot uses it It is one of the two basic [PhotoRobot Viewer](https://www.photorobot.com/glossary/photorobot-viewer) layouts, best for items with many images and visually led product lines such as apparel, footwear and jewelry; the other is the [buttons layout](https://www.photorobot.com/glossary/buttons-layout). ## See on photorobot.com - [Viewer layouts and configurations](https://www.photorobot.com/manuals/photorobot-viewer-layouts-and-configurations) ## Related terms - [Buttons layout](https://www.photorobot.com/glossary/buttons-layout): A PhotoRobot Viewer layout with clickable icons for the item's folders. - [PhotoRobot Viewer](https://www.photorobot.com/glossary/photorobot-viewer): PhotoRobot's hosted viewer for image galleries, 360 spins, hotspots and panoramas on websites and e-shops. - [Still image](https://www.photorobot.com/glossary/still-image): A single photograph of a product, as opposed to a spin, video or 3D model.