# Library contents

The Web Developer's Library contains information about designing and developing usable widgets for S60 mobile devices.

Section | Contents
--- | ---
Introduction to S60 Web Runtime environment | An overview of widgets and the Web Runtime environment that enables widgets to run on S60 mobile devices. The section lists the supported standards and features, includes version history information, explains how widgets behave on mobile devices, and discusses security aspects.
Designing widgets | Guidelines for designing usable widgets. Where relevant, links are provided to the Web Runtime API reference and documentation on the Web.
Developing widgets | Detailed information on how to implement the widget functionality. Where relevant, links are provided to the Web Runtime API reference and documentation on the Web.
Example widgets | Example widgets that you can download to your PC and then to a mobile device or emulator. You can also examine the source files.
Integrating widgets with devices | Methods for deploying and managing widgets on mobile devices.
Web Runtime API reference | API reference for the S60 5th Edition.
Developer resources | Links to more information on widget development for the S60 platform.
Terms and abbreviations | Terms and abbreviations used in this library.
Discussion about this resource | Link to the feedback channel.