Thanks for bringing this to our attention, Lainie! There is no caffeine in our Tylenol Arthritis Pain Caplets so your experience is very unusual. So we can learn more about what happened and gather some details about this product, please give us a call at 1-877-895-3665. We're here to assist you Monday-Friday 9AM-7PM ET.
While Kindle Publishing accepts plain text files for conversion to html, it does not recommend adding images to a text file. This is because images are not converted to the html format. Hence, a .txt format should only be used if your book does not contain any images. Rich Text Format (.rtf)
Amazon's Kindle isn't just an e-reader that competes with the iPad; it's also an eBook format. You can read Kindle books on the iPad using Amazon's Kindle app. Kindle eBooks are a modified version of the Mobipocket file format and use the .AZW file extension.