  Ibn Ezra’s literary legacy consists of short and extremely popular handbooks in a wide variety of fields: grammar and poetics, astrology and arithmetic, astronomy and religious speculations, as well as both short and lengthier biblical commentaries. Most of his astrological tracts circulate in at least two versions; their Latin versions played a pivotal role in the spread of that art throughout Christian Europe. Manuscripts number in many dozens. The biblical commentaries are also found in very manuscripts, and they are included in the margins of numerous printings. On the other hand, there are relatively few critical editions of his writings.  This situation has been largely rectified for his astrological writings, surely the most important part of his corpus, due to the untiring work of Shlomo Sela. Moreover, Sela’s highly praised editions, studies and translations have brought to light even more texts, in both Hebrew and Latin. (For the most recent inventory of primary sources and secondary studies, see Sela and Freudenthal 2006; newer editions by Sela are listed in the bibliography.) Several long excursuses, for example to Exodus 3:15 or Exodus 33:21, recap his statements on the main issues. Yesod Mora, a monograph on the rationale underlying the biblical commandments written very late in his life, also contains a full statement of Ibn Ezra’s teachings.