The page of the ABA Web Store for the third edition of A Manual of Style for Contract Drafting (here) has just added links to PDFs of the table of contents, the preface, and the introduction. They’ll give you a good sense of the book. In particular, the preface has a short chapter-by-chapter breakdown of what has changed.
About the author
Ken Adams is the leading authority on how to say clearly whatever you want to say in a contract. He’s author of A Manual of Style for Contract Drafting, and he offers online and in-person training around the world. He’s also chief content officer of LegalSifter, Inc., a company that combines artificial intelligence and expertise to assist with review of contracts.