The Ninth Edition of this bestselling book continues the successful tradition of earlier editions by introducing the fundamentals of reinforced concrete design in a clear and understandable manner. Numerous examples of the principles discussed are included. This edition includes revisions made by the American Concrete Institute in Building Code Requirements for Structural Concrete (318-08) and Commentary (318R-08). The text was prepared for an introductory three credit hour undergraduate course on reinforced concrete design. Nevertheless, sufficient material is included so that this textbook can be used for a second additional three credit hour undergraduate course. Further, this text is also useful for practicing engineers as it presents the latest requirements of the ACI design code.