prolific authors
... that while some prolific authors used pen and paper or typewriters, Philip M. Parker has used a computer to write more than 200,000 books?
... that while some <b id="mwAVg"><a class="new" data-mw-i18n='{"title":{"lang":"x-page","key":"red-link-title","params":["List of prolific writers"]}}' href="./List_of_prolific_writers?action=edit&amp;redlink=1" id="mwAVk" rel="mw:WikiLink" title="List of prolific writers" typeof="mw:LocalizedAttrs">prolific authors</a></b> used pen and paper or typewriters, <a href="./Philip_M._Parker" id="mwAVo" rel="mw:WikiLink" title="Philip M. Parker">Philip M. Parker</a> has used a computer to write more than 200,000 books?