Fair & Square: Blocking Your Quilt

The process of re-shaping a wet or steamed quilt is called blocking. After adding enough water or steam to relax the fibers, blocking can help to square up blocks, straighten wavy edges, and make perfect square corners. These web sites explain and show more about blocking your quilt:

Chubby Mummy: Tutorial: Blocking a Quilt

Ask Alex: Quilt Blocking
This HGTV site shows step-by step photos of wet blocking technique.

Sylvia Landman at Quilt University offers detailed descriptions of both wet and dry blocking for individual blocks and whole quilts in her article Blocking Quilts and Pieced or Appliquéd Blocks.