Some Observations Regarding Approbations for Hebrew Books
Haskamot (rabbinical approbations) to Hebrew books have an very interesting history. There are a few different forms of haskamot, perhaps the most important form is that which granted the author and/or publisher a copyright. Typically, the haskamah would prohibit republishing the particular book for a period of ten or fifteen years, etc. In some instances, it was not only the particular book but any book in the field. For example, the haskamah to R. Yom Tov Lipmann Heller's edition of…