Why is the text view for some books full of misspelled words?
The searchable text of these volumes is produced through a process called Optical Character Recognition (OCR). OCR software “reads” the page images and makes a best guess at identifying the letters and words on a page. This is an automated process, subject to error, particularly if the original printing or the scan is of poor quality, if the printed fonts are difficult to read, or if the text is lightly printed. Even the best quality OCR usually contains an error or two per page. While this does not usually cause significant problems with searching, it does mean that the OCR text is not a faithful reproduction of the printed (or scanned) original.
