Endnu en super guide fra WP tuts+:
Using Custom Image Sizes in Your Theme and Resizing Existing Images to the New Sizes
WP: http://codex.wordpress.org/Function_Reference/add_image_size
Endnu en super guide fra WP tuts+:
Using Custom Image Sizes in Your Theme and Resizing Existing Images to the New Sizes
WP: http://codex.wordpress.org/Function_Reference/add_image_size