An eBook is a digital version of a print book that has been optimized for on-screen reading. eBooks are available for purchase and download at this site. In order to use the DRM-protected eBooks available at this site Adobe Digital Editions must be installed and activated.

Digital rights management (DRM) is a method of protecting copyrighted materials and preventing digital piracy. Publishers, as the copyright holders of publications, set the parameters for DRM implementation.

Adobe Digital Editions is a free eBook reader application used to read DRM-protected eBooks. Adobe Digital Editions must be installed and activated in order to use the DRM-protected eBooks available at this site.

To review system requirements and download instructions for the free Adobe Digital Editions software, click here.

Adobe Digital Editions runs on many Windows® and Macintosh™ computers. For more on supported operating systems and system requirements, click here.

To use Adobe Digital Editions, Adobe Flash Player must be installed. The required version of Adobe Flash Player varies depending on operating system:

• Windows Vista (or newer) requires Adobe Flash Player v9.0.28 (or newer).
• Windows XP and Windows 2000 require Adobe Flash Player v7.0 (or newer).
• Mac OS® X requires Adobe Flash Player 8 (or newer).

Additionally, JavaScript must be enabled in your browser to install Adobe Digital Editions:

• For instructions on enabling JavaScript in your Windows-based browser, click here.
• For instructions on enabling JavaScript in your Macintosh-based browser, click here.

To review system requirements and download the free Adobe Flash Player, click here.

No, you do not need to uninstall Adobe Reader, but you must have Adobe Digital Editions installed. To review system requirements and download instructions for Adobe Digital Editions, click here.

Activation of Adobe Digital Editions allows you to read DRM-protected eBooks. The first time that you open Adobe Digital Editions, you must activate the program. Adobe Digital Editions can be activated anonymously, or by using an Adobe ID.

Activating Adobe Digital Editions using an Adobe ID allows you to do more with eBooks, such as downloading them on multiple computers and transferring them to supported portable devices. However, this is a matter of personal preference. Before deciding, please consider the following:

If you use anonymous activation, note these limitations:

• You will only be able to read a downloaded eBook on a single computer.
• You will not be able to download an eBook on more than one computer. After the initial download of an eBook, subsequent downloads of that title can only be completed on the same computer.
• You will not be able to transfer eBooks to supported eBook devices.
• You can decide to activate using an Adobe ID at any time. However, if you activate Adobe Digital Editions with an Adobe ID which has already been used to activate Adobe Digital Editions on another computer, the eBooks you originally downloaded when using anonymous activation will no longer work.

If you use an Adobe ID:

• You will be able to download an eBook on computers that have been activated with the same Adobe ID (up to 6 computers/devices can be activated using the same Adobe ID).
• After the initial download of an eBook, subsequent downloads of that title can be completed on computers activated with the same Adobe ID.
• You will be able to transfer Adobe to supported eBook devices activated with the same Adobe ID.

If you prefer to activate Adobe Digital Editions anonymously:

1. Open Adobe Digital Editions.
   The 'Setup Assistant' dialog box is displayed.
2. Click 'Continue'.
   The 'Authorize Computer' screen is displayed.
3. Select the 'Don't Authorize Computer' option.
4. Click 'Activate'.
   You are prompted to confirm that you do not want to activate Adobe Digital Editions using an Adobe ID at this time.
5. Select 'Continue'.
6. Click 'Finish' to close the 'Setup Assistant' dialog box.

If you choose not to activate Adobe Digital Editions using an Adobe ID at this time, you may do so later.

To activate Adobe Digital Editions using an Adobe ID:

1. Open Adobe Digital Editions.
   The 'Setup Assistant' dialog box is displayed.
2. Click 'Continue'.
   The 'Authorize Computer' screen is displayed.
3. In the appropriate fields, enter the email address and password for your Adobe ID.
   If you do not already have an Adobe ID, click 'get an Adobe ID online' and follow the instructions to sign up for an Adobe ID.
4. Click 'Activate'.
   Your computer is activated to your Adobe ID.
5. Click 'Finish' to close the 'Setup Assistant' dialog box.

To activate an eBook device using an Adobe ID:

1. Connect the eBook device to your computer.
2. Open Adobe Digital Editions.
   Adobe Digital Editions launches and detects the eBook device. The 'Device Setup Assistant' dialog box is displayed.
3. Click 'Authorize Device'.
   Adobe Digital Editions activates the eBook device. You can now transfer DRM-protected Adobe eBooks to the device.

Note that both Adobe Digital Editions and the eBook device must be activated with the same Adobe ID to transfer DRM-protected Adobe eBooks to the device.