In preparing for this book, the sequel to Cybersecurity Program Development for Business: The Essential Planning Guide (Wiley 2018), I have consulted with, attended, read, and visited thousands of primary sources, be they in the form of books, seminars, workshops, classes, conferences, vendors, or cybersecurity professionals of every specialty that you can imagine (and some that you cannot!). It is-clearly-impossible to list all the material that I consulted and influenced my thinking, and I therefore apologize in advance for any omissions from the following bibliography.The bibliography is first organized topically, followed by selected bibliography from Cybersecurity Program Development for Business: The Essential Planning Guide, whose material has been used extensively throughout the cybersecurity part of this book.