what is the size of a quarter page ad
*Ad size may vary depending on size of book. All dimensions are approximate. Full Page Ads. Half Page Ads. Quarter Page Ads. â¢ Approximate dimensions: 8 1/2Ë wide x 11Ë high. â¢ Refer to the number below to identify which layout you wish to use. â¢ Approximate dimensions: 8 1/2Ë wide x 5Ë high. â¢ Refer to the number below to identify which layout you wish to use.