(1) Ryan, Christopher, 1962-, PhD is the author (with Cacilda Jethá) of Sex at Dawn.
(2) Ryan, Christopher, 1943-2004, The Reverend Christopher J. Ryan is the author of Michelangelo: the poems and Poetry of Michelangelo: an introduction and translator of Dante's The Banquet.
(3) Ryan, Christopher (Christopher L.), LLM is author of Company Directors: Liabilities, Rights and Duties and coauthor of The Law and Practice of Shareholders' Agreements (with Katherine Reece Thomas and David Baylis), Company Law (with Derek French and Stephen Mayson), An Introduction to Criminal Law (with Gary Scanlan) and A Guide to the Financial Services Act, 1986 (with Wedgwood, Pell and Leigh).
(4) Ryan, Christopher, 1954- is in marketing and author of How to Create an Unstoppable Marketing and Sales Machine, The Master Marketer, Virtual Marketing, and High-Performance Interactive Marketing.
(5) Ryan, Christopher, 1935-, Aspects of Irish Genealogy 3
(6) please identify the author of City of Woe
(7) Ryan, Christopher, 1952-, The Eiffel Tower
(8) Ryan, Christopher, 1966-, Schopenhauer's Philosophy of Religion