Q. I’m looking at a sample PDF and it has typos or missing letters. Why is this?

A. Typically, this is caused by certain web browsers not rendering the PDF fonts correctly. Letters are omitted or too close together making it appear words are misspelled or missing. These errors are not actually present in the actual book.

If you download the file rather than preview it in the browser's window, the issue will resolve. For optimal results, use Adobe Acrobat Reader to view PDFs.