Early editions of American Jurisprudence (specifically the First Edition or Am. Jur. 1d) are often available in PDF format for free because they have entered the public domain.
There is a distinct legal difference between handing someone a check and "negotiating" it. Am. Jur. explains the mechanics of endorsement and delivery, clarifying how rights are transferred and how liability is created. american jurisprudence bills and notes pdf
The text provides a deep dive into who is liable on the instrument. Is the accommodation party liable? What happens if there is a forgery? The encyclopedia categorizes "real defenses" (like fraud in the execution) versus "personal defenses," providing citations to relevant state and federal rulings. american jurisprudence bills and notes pdf