While most Torah works have known authors—Maimonides wrote the Mishneh Torah, and Rabbi Yosef Karo wrote the Shulchan Aruch—some texts were written without the author’s name attached. Read on for 10 examples of anonymity meeting erudition.
1. Sefer Yetzirah
Sefer Yetzirah (“Book of Formation”) is the earliest extant work of Jewish mysticism, and the only one mentioned in the Talmud. Like the text itself, its authorship is shrouded in mystery. According to tradition, it was authored by none other than our forefather Abraham (his is the only name mentioned inside). Others suggest that while its core ideas go back to Abraham, it was written down much later, during the Mishnaic era,1 perhaps by Rabbi Akiva.
2. Halachot Gedolot
Halachot Gedolot (“Great Laws”) was one of the most influential halachic works of the Geonic period. Later codifiers held it in the highest regard—such as Rabbi Yitzchak ibn Giat, who wrote, “We must accept and fulfill [his rulings] without budging one iota.”2
However, the identity of the author, often referred to by the acronym BeHaG (Baal [“author of”] Halachot Gedolot), is uncertain. Some attribute it to Rabbi Yehudai Gaon, others to Rabbi Shimon Kayyara.
Read: The Geonic Era
3. Sefer Hachinuch
One of the best-known anonymous Torah works is Sefer Hachinuch, a medieval classic that lists all 613 of the Torah’s commandments, explains their basic laws, and offers thought-provoking reasons for each one.
The author went out of his way to hide his identity, sparking centuries of debate. Many believe it was written by the scholar Rabbi Aharon Halevi, but others disagree—and both sides bring strong arguments.
Interestingly, Minchat Chinuch, the famous commentary on Sefer Hachinuch written by 19th-century scholar Rabbi Yosef Babad, was also published anonymously when it first appeared!
Read: The 613 Commandments
4. Kolbo
Another important work from the medieval era is Kolbo. Written anonymously due to the author’s humility,3 he still gave it a bold title: Kolbo is translated loosely as, “the book with everything you need to know inside.” This practical guide gathers and arranges halachic material about daily life, Shabbat, and the Jewish holidays in 150 chapters.
Over the years, scholars have proposed various theories about who wrote it—including one suggestion that it was authored by a learned woman4—but the mystery remains unresolved.
5. Issur V’Heter Ha’aruch
When Rabbi Yosef Caro wrote the Shulchan Aruch (Code of Jewish Law), his contemporary Rabbi Moshe Isserles (the Rema) saw that it mostly followed Sephardic authorities, without giving much voice to Ashkenazi custom.
One particular omission bothered him: the Issur V’Heter Ha’aruch (“Detailed Laws of What Is Permissible and Forbidden”), an anonymous 15th-century work on the laws of kosher, which quoted the rulings of leading Ashkenazi rabbis of the era. This prompted the Rema to write Darkei Moshe, where he cites this work extensively. Many of its rulings were later distilled in the Rema’s glosses on the Shulchan Aruch—forming the foundation of Ashkenazi halachic practice that continues to this day.
Some say this work was written anonymously because it was originally intended for the author’s personal use.5
6. Tanya
When Tanya, the foundational work of Chabad Chassidism, was first published in 1797, it appeared anonymously. Originally, the work was distributed in manuscript form. But when mistakes (and forgeries) started creeping in, its author, Rabbi Shneur Zalman of Liadi—the first Rebbe of Chabad—agreed to have it published, on condition of anonymity. Later editions published after his passing began to include his name.
Read: Man as Verb
7. Seder Tanaim V’Amoraim
Dating back to the Geonic era, Seder Tanaim V’Amoraim (“The Order of the Mishnaic and Talmudic Sages”) is another key anonymous work. It was the first text to lay out the principles a student should follow to properly understand the Talmud and derive halachic conclusions from its discussions.
Read: What Is the Talmud?
8. Sefer Hayashar
Sefer Hayashar (“The Book of the Just”) tells the story of Jewish history from the Patriarchs through the period of the Judges, filled with fascinating and sometimes incredible tales.
Many cast doubt on the work’s authenticity,6 yet it is sometimes quoted in mainstream works such as Yalkut Shimoni and Seder Hadorot. In the introduction, the anonymous author recounts that the manuscript was discovered by an old man who found it hidden in a wall shortly after the destruction of the Second Temple. Not all scholars accept this origin story, but whether its tales are historical or legend, they make for a captivating read.
9. Chemdat Yamim
Few Torah books have stirred as much debate as Chemdat Yamim. First printed in Izmir, Turkey, in 1731, the origins of this kabbalistic work have long been a mystery.
Some claimed it was written by Nathan of Gaza, the chief disciple of false messiah Sabbatai Zevi, and that it contains subtle references to Sabbatean ideas. Others, however, came to the book’s defense, insisting that it was the work of a great scholar like Rabbi Binyamin Halevi, a student of Rabbi Yitzchak Luria (the Arizal), or Rabbi Yisrael Yaakov Algazi. Most contemporary scholars maintain that the work is a collection of kabbalistic writings from the students of the Arizal, accompanied by customs and laws, and was not written by Nathan of Gaza.
Read: Sabbatai Zevi
10. Torah Lishmah
In one of his published works, Rabbi Yosef Chaim of Baghdad (known as the Ben Ish Chai) mentions an old manuscript called Torah Lishmah (“Torah for Its Own Sake”). Purportedly written by an unknown Iraqi rabbi named Rabbi Yechezkel Kakhli, Rabbi Yosef Chaim had discovered the text and copied it to preserve it for posterity.
But many scholars suggest that “Rabbi Kakhli” never existed: the Ben Ish Chai himself had authored Torah Lishmah and simply chose to publish it under a pseudonym. In fact, the name Yechezkel shares the same numeric value as Yosef, and Kakhli equals Chaim! By attributing it to someone else, he may have been fulfilling the very spirit of the title—studying and teaching Torah purely “for its own sake,” without seeking recognition.
In 1972, Rabbi Yosef Chaim’s manuscript was discovered, and Torah Lishmah was formally published in Jerusalem the following year.
Read: The Ben Ish Chai
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