Postcards were exchanged between them on a weekly basis with the data being represented through a drawing on one side and a detailed key or legend on the other.

[4] The project has surface similarities with the quantified self projects like designer Nicholas Felton's annual reports that quantify and represent life events like number of books read or place visited, but is more personal and less analytical, with hand-drawn illustrations replacing computer generated charts.

The original post cards as well as several accompanying notebooks are now part of the permanent collection at the MoMa.

[11][7][3][12] Wired called the book "charming", saying it is "filled with hand drawn postcards and full-page spreads with insights about how it feels to keep a microscope on your life for an entire year.

"[5] It averages over four (out of five) stars in its more than seven hundred reviews on the social reading site Goodreads.