It provides Boolean and proximity searches, complete test and key word search; extensive support for bookmarking, journaling and annotation: inter-links leading to related topics and examples; zoom features for detailed viewing of figures and graphs; cut and paste capabilities for inserting text and figures into other documents and programs, and an expandable table of contents provides instant access to text, tables and illustrations. Besides the complete 25th Edition, this CDROM also contains material from earlier editions of the Machinery's Handbook.