If you are looking for a legal way to access the book without a purchase, you can use authorized digital libraries:
The Bro Code by Barney Stinson, Paperback | Barnes & Noble®
For those who want a permanent copy, several retailers offer both physical and digital editions: : Available on Amazon Kindle and eBooks.com .
: This platform offers a "digital lending" service where you can borrow the book for a limited time in a browser-based reader.
The official version of by Barney Stinson (and Matt Kuhn) is a copyrighted work published by Simon & Schuster . While you may find various PDF versions hosted online, most are not officially authorized for free distribution. Legal Ways to Read for Free
: You can view a significant preview of the book for free, which includes many of the rules and the introductory sections.