[2] Any teaching or narrative recorded in the first person relates to the sixth Rebbe, Rabbi Yosef Yitzchok Schneersohn.

In describing this work, Rabbi Yosef Yitzchak wrote: "A book that is small in format... but bursting with pearls and diamonds of choicest quality... A splendid palace of Chasidism.

The calendar's name is taken from the words used to open the recital of the daily psalm in the Jewish morning prayer service, which begins "Today is the nth day of the week..." A number of English translations of Hayom Yom have been published.

This post-prayer reading seems to be a more common practice in Chabad communities in North and South America than in Israel.

[6] Hayom Yom expounds the Chabad Hasidic theological principle of "continuous creation" as an injunction of practicality: "God created the universe and all physical objects ex nihilo, "something from nothing."