This page demonstrates a simple usage of the portfolio shortcode to generate a 4 column layout. You can easily set the number of columns, image ratio, sorting methods and much more. Full details and documentation is available on the portfolio shortcode page.
Code:
[portfolio post_type="page" post_parent="1002" content_width="926" image_ratio="6:5" columns="4" paging=true posts_per_page="12" orderby="id" order="DESC"]