Summer squash have thin, edible skins and soft seeds. The tender flesh has a high water content, a mild flavor and doesn't require long cooking. The most widely available varieties of summer squash are crookneck and pattypan.
From The Food Lover's Companion, Fourth edition by Sharon Tyler Herbst and Ron Herbst. Copyright © 2007, 2001, 1995, 1990 by Barron's Educational Series, Inc.