This is a critique solely of the digital conversion of Green Mars to Kindle format.The Kindle edition is currently (05 Sept 2010)a mess. It appears that an inadequate paper copy was scanned to create the digital edition and then not even given a basic proofreading to correct scanning errors.There are non-words (ex: "faetores" instead of "factories", or "huls" instead of "hills"), there is inappropriate punctuation (umlauts where none should be are popular) and the ever popular hyphenation of words as a relic from the words straddling two lines in the physical editions.The publisher does a disservice to the work and to the readers by allowing this mess into print.My recommendation would be to avoid buying this until the publisher makes the necessary corrections.FWIW, I did not notice any of these errors in the Kindle edition of Red Mars. I haven't yet read Blue Mars so I am unable to provide feedback regarding its conversion to digital.