This document contains a list of transaction codes and descriptions for various BASIS/ABAP tools in SAP. Some of the key transactions listed include S001 for the ABAP Development Workbench, SE03 for transport management tools, SE16 for the table browser, SE38 for the ABAP editor, SM21 for viewing the system log, and SPRO for starting the SAP Implementation Guide (IMG). Many of the transactions listed provide useful tools for ABAP development, data management, transports, debugging, documentation, and system administration functions in SAP.