From the Description on the webpage:
As Emanuel Tov has stated, these introductions form “an almost complete introduction” to the textual criticism of the Hebrew Bible. They hold an important place in Old Testament textual criticism and can stand alone, apart from the detailed discussions of the textual problems found in the volumes. Part one surveys the history of OT textual criticism “from its origins to J. D. Michaelis” and presents the Hebrew Old Testament Text Project and its goals. Part two describes in detail the background of the modern versions that the HOTTP took into account in its work. Part three, the most extensive section, discusses the textual witnesses—the different forms of the Hebrew text and the contribution of the ancient versions. As his concluding program for a critical edition makes clear, the groundbreaking work of Barthélemy and the HOTTP served as the basis for the new Biblia Hebraica Quinta, which began publication in 2004.