Since I got my eReader, I don't read books no laptop, no netbook, no monitor. Over documents with a complex layout: I can not say for all the e-books, but my Sony Reader reads pdfci well, but if they are A4 and not the A6, it turns out, of course too small. In the subway/on the go/in the car did not read, my eyes get tired. Comfortable to read sitting in a chair.