Page Thumbnails in InDesign
By default, the Pages panel in InDesign displays the page thumbnails vertically. Personally, I prefer to see them laid out horizontally. To change this, click the triangle in the top corner of the Pages panel and a sub-menu appears. Go to Panel Options… right at the bottom and uncheck the vertical option on the new panel that opens.
I also tend to change the thumbnail size to small icons.other page