Dear Sir or Madam,<br /><br /> <br /><br /> please update your iPublish Central app to show both retina-grade book covers as well as retina-grade SHARP and crisp text. I&#039;m reading on an retina iPad mini and it is unbearable for your eyes. <br /><br /> <br /><br /> Furthermore I am not able to login to my elsevier institute account. Please fix. <br /><br /> <br /><br /> Thanks