What is a pre-print?

Pre-print (or Author Submitted Manuscript, ASM): A pre-print is the original version of the manuscript as it is submitted to a journal. It typically is a double spaced .doc file with minimal formatting. It is useful to think of this version as pre-peer review.

Post-print (or Author Accepted Manuscript, AAM): A post-print is a document that has been through the peer review process and incorporated reviewers comments. It is the final version of the paper before it is sent off to the journal for publication. It still looks like the double spaced .doc file. It is useful to think of this version as post-peer review.

Published version/PDF (or Version of Record): This is the version that has been typeset by the publisher and that is published in their website.