Ebooks are available in PDF format. Known devices and operating systems that can open all Ebooks on this website: Windows, MAC, Android 2.2+ Devices, IPad (iOS 3+), IPhone (iOS 3+), as well as versions of Kindle that support the Android store. Several more devices are supported and you should find out whether your device is one of them before your purchase. You may need free software installed as stated in the paragraph below to start reading your Ebook.

Most recent devices support PDF or EPub format natively. However, as noted on several Ebook pages, the free application Adobe Digital Editions or the free application Bluefire reader may be required for reading the Ebook. These Ebooks carry Digital Rights Management and you should only proceed with purchase if your device can install either of these applications. The devices listed in the first paragraph all support Adobe Digital Editions or the Bluefire reader.