Mr. Men his son, Adam, who had asked him what a tickle looked like. Hargreaves responded with a round, orange figure with long, bendy arms. Over the course of the 1970s Roger Hargreaves produced 38 more Mr. Men in addition to Mr. Tickle, as well as producing a number of other Mr. Men books. In the 1980s Roger Hargreaves began the Little Miss series with 'Little Miss Bossy' and he produced 21 characters and books. As well as this two special Mr. Men stories were created in 1985 'Mr. Nobody' and 'Mr. Christmas'. Both of these have been rereleased in later years.
Mr. Men title character and his/her single dominant personality trait to convey a simple moral lesson. The Mr. Men and Little Miss characters frequently reappeared in other characters' books. As of 2015, a total of 85 Mr. Men and Little Miss characters had been featured in the series. The books' simple stories, with brightly coloured, boldly drawn illustrations, made them very popular, with sales of over 100 million worldwide across 28 countries. The first six "Mr. Men" books were published in United Kingdom in 1971, priced at 20p each. Mr. Tickle was the first Mr. Men character created by Hargreaves, inspired by