Title: Mr. Men
Content:  • Mr. Men: Start to Read, released 5 July 2004, ISBN: 0-603-56130-6 • Mr. Men: Start to Write, released 5 July 2004, ISBN: 0-603-56139-X
Title: Mr. Men
Content:  • The Mr. Men on Holiday (1976) (ISBN: 0-8598-5055-2) • The Mr. Men Christmas (1976) (ISBN: 0-8598-5056-0 • The Mr. Men Sports Day (1977) (ISBN: 0-8598-5064-1) • My Very Own Mr. Men Book (1977) (ISBN: 0-8598-5066-8) • The Mr. Men Cookbook (1977) (ISBN: 0-8598-5069-2) • The Mr. Men ABC (1978) (ISBN: 0-8598-5108-7) • My Mr. Men Counting Book (1978) (ISBN: 0-8598-5110-9) • Mr. Christmas (1985) • Mr. Nobody (1985) • Mr. Cheeky (2001, ISBN: 0-7498-5457-X) (Competition winner) • Little Miss Jealous (2006) (Competition winner) • Little Miss Stella (Limited edition in conjunction with Stella McCartney) • Mr. Funny's Red Nose Day (2009, ISBN: 978-1-4052-4456-5) • You and the Silly Birthday (2011, ISBN: 978-1-4052-6262-0) (Personalised book exclusively at Egmont)
Title: Mr. Men
Content:  • Mr. Mischief (March 1978) (ISBN: 0-8598-5104-4) • Mr. Clever (March 1978) (ISBN: 0-8598-5105-2) • Mr. Busy (March 1978) (ISBN: 0-8598-5106-0) • Mr. Slow (October 1978) (ISBN: 0-8598-5096-X) • Mr. Christmas (1984) (ISBN: 0-8598-5220-2) • Mr. Brave (1990) • Mr. Grumble (May 1990) • Mr. Perfect (May 1990) • Mr. Cheerful (May 1990) • Mr. Cool (April 2003) • Mr. Rude (April 2003) • Mr. Good (September 2003) • Mr. Nobody (1985/March 2010) • Mr. Christmas (2002) • Mr. Birthday (2006) • Mr. Mo (2013) (renamed later to Mr. Moustache) • Mr. Marvelous (2016) • Mr. Adventure (2017) • Mr. Calm (September 2021)
Title: Mr. Men
Content:  The following is a list of the book titles with year of first publication and associated ISBNs given in parenthesis. There are many more titles published as translations including publications in French, Spanish, German, Portuguese, Dutch, Greek, Icelandic, Hebrew, Mandarin, Korean, Irish, and others.
Title: Mr. Men
Content:  • Mr. Bump's Guide to DIY (2000, ISBN: 0-7498-4892-8) • Mr. Lazy's Guide to Fitness (2000, ISBN: 0-7498-4891-X) • Mr. Mean's Guide to Management (2000, ISBN: 0-7498-4893-6) • Little Miss Chatterbox's Guide to Text Messages (2001, ISBN: 0-7497-4791-9) • Little Miss Naughty's Guide To Love (2001, ISBN: 0-7497-4792-7) • Little Miss Trouble's Guide to Men (2002, ISBN: 1-4052-0191-6) • Little Miss Chatterbox's Guide to Gossip (2003, ISBN: 1-4052-0754-X) • Mr. Greedy's Guide to Food • Mr. Messy's Guide to Student Life • Mr. Tickle's Guide to Women (2002, ISBN: 1-4052-0192-4)
Title: List of Mr. Men
Content:  See Mr. Mo.
Title: List of Mr. Men
Content:  See Mr. Mean.
Title: Mr. Men
Content:  • Mr. Tickle (August 1971) (ISBN: 0-8539-6003-8) (March 1978) (ISBN: 0-8598-5090-0) • Mr. Greedy (August 1971) (ISBN: 0-8539-6000-3) (March 1978) (ISBN: 0-8598-5084-6) • Mr. Happy (August 1971) (ISBN: 0-8539-6001-1) (March 1978) (ISBN: 0-8598-5091-9) • Mr. Nosey (August 1971) (ISBN: 0-8539-6002-X) (March 1978) (ISBN: 0-8598-5085-4) • Mr. Sneeze (August 1971) (ISBN: 0-8539-6004-6) (March 1978) (ISBN: 0-8598-5086-2) • Mr. Bump (August 1971) (ISBN: 0-8539-6005-4) (March 1978) (ISBN: 0-8598-5083-8) • Mr. Snow (November 1971) (ISBN: 0-8539-6008-9) (March 1978) (ISBN: 0-8598-5093-5) • Mr. Messy (August 1972) (ISBN: 0-8539-6017-8) (March 1978) (ISBN: 0-8598-5081-1) • Mr. Topsy-Turvy (August 1972) (ISBN: 0-8539-6018-6) (March 1978) (ISBN: 0-8598-5092-7) • Mr. Silly (August 1972) 
Title: Mr. Men
Content:  • Mr. Fussy (April 1976) (ISBN: 0-8598-5047-1) • Mr. Bounce (April 1976) (ISBN: 0-8598-5048-X) • Mr. Muddle (April 1976)(ISBN: 0-8598-5049-8) • Mr. Dizzy (April 1976) (ISBN: 0-8598-5050-1) • Mr. Impossible (April 1976) (ISBN: 0-8598-5051-X) • Mr. Strong (April 1976) (ISBN: 0-8598-5052-8) • Mr. Grumpy (March 1978) (ISBN: 0-8598-5094-3) • Mr. Clumsy (March 1978) (ISBN: 0-8598-5095-1) • Mr. Quiet (March 1978) (ISBN: 0-8598-5097-8) • Mr. Rush (March 1978) (ISBN: 0-8598-5098-6) • Mr. Tall (March 1978) (ISBN: 0-8598-5099-4) • Mr. Worry (March 1978) (ISBN: 0-8598-5100-1) • Mr. Nonsense (March 1978) (ISBN: 0-8598-5101-X) • Mr. Wrong (March 1978) (ISBN: 0-8598-5102-8) • Mr. Skinny (March 1978) (ISBN: 
Title: List of Mr. Men
Content:  Mr. Mo is part of the Mr. Men series of books, by Roger Hargreaves. Mr. Mo only appears in the Mr. Mo book published in 2013 in conjunction with the Movember men's health charity campaign. Mr. Mo was published in hardback in Australia, and digitally by Amazon in some parts of the world. In the book Mr. Mo has his moustache shaven off whilst at the barber, and has a change in personality. He only returns to normal after growing the moustache back. His name changed afterwards to Mr. Moustache.

Question: Who is the author of list of Mr. Men?
Answer: Roger Hargreaves.
Charles Roger Hargreaves.