1. Kindle devices natively support their proprietary formats AZW and AZW3, which are commonly used for Kindle e-books.2. Microsoft Word documents, including the older DOC format and the newer DOCX format, are also compatible with Kindle devices.3. In terms of image formats, Kindle can display JPEG (JPG), GIF, and PNG formats, which are widely used for e-book covers and embedded images.4. Beyond text and images, Kindle is capable of reading TXT, PDF, MOBI, and PRC file formats. These formats allow users to transfer a variety of books and documents to their Kindle for reading.5. Kindle has good support for Mobi and Azw formats, which are specifically designed for e-books. As a result, the reading experience on Kindle is usually better for these formats.6. While PDFs can be opened on Kindle, the display may not be ideal for scanned documents, as they are not tailored for Kindle's screen size.7. TXT format is not the best supported on Kindle and may result in issues like garbled text or page turning problems. Saving a TXT file as UTF-8 may improve display quality, but it is recommended to convert it to Mobi format for a better reading experience.8. PRC format, another e-book format compatible with Kindle, offers similar good reading support to Mobi format.