The Fourth Edition of this classic text carries on the Gere/Timoshenko tradition of quality, while incorporating a host of content and software-based improvements. Revisions to the Fourth Edition include: Presentation of difficult concepts revised for clarity. (For example, a new Chapter 8 contains expanded coverage of combined loadings. ) More than 60% of the problems updated and improved with real-life systems, loadings, and dimensions. More realistic content and solution steps included in worked examples. New realistic 3-D rendered artwork. Bound-in 3. 5" disk contains Mathcad Engine 5. 0 for Windows - a powerful, easty-to-use computational program - which includes a set of worksheets for solving equation-based problems.