Retrospective: Writing an O'Reilly Book
r-chart.comAlso see https://www.igvita.com/2013/09/29/retrospective-high-perform... for a more disciplined approach to amassing data related to writing a book.
Also see https://www.igvita.com/2013/09/29/retrospective-high-perform... for a more disciplined approach to amassing data related to writing a book.