What is the best source for learning about the common law? In Schick v. United States, 195 U.S. 65, 69 (1904), the Supreme Court noted that “Blackstone's Commentaries are accepted as the most satisfactory exposition of the common law of England. At the time of the adoption of the federal Constitution, it had been published about twenty years, and it has been said that more copies of the work had been sold in this country than in England, so that undoubtedly the framers of the Constitution were familiar with it.” See this.
Both the Internet Archives and Google Books have “olde English” versions of Blackstone’s available for download, so just go to those sites and perform some searches.
If you read and study the “olde English” versions, please remember that the letter “s” appearing in the middle of a word appears as an “f” in that type of print. That tireless researcher, Jon Roland, makes available a number of Blackstone’s prints and reference works.
My personal preference is Jones on Blackstone, the reason being that he crams Blackstone’s 4 volumes into 2 thick volumes, with smaller print but copious footnotes and references not available via Blackstone.