Ellen Jovin is a grammar and language fan. Her book Rebel With A Clause: Tales and Tips From A Roving Grammarian details her travels with her Grammar Table. Keen to engage with people face to face rather than online Ellen purchased a fold up table and set off on a road trip around the United States setting up on street corners and waiting for people to talk to her. The idea was that people could come and ask her about language and grammar without being made to feel stupid. Common questions included when to use commas and semi-colons and the right way to say 'nuclear' (think George Bush). Although she had lots of fun on her trip and met many interesting people along the way, Ellen's main intention is to help people with written and spoken English presentation in their public and working lives without the need for grammar books. Producer: Maggie Ayre

Bob Stanley from Saint Etienne talks band names, from the (subjectively) rubbish to the brilliant, along with some of the best origin stories. Producer Sally Heaven

In the first of a new series, Michael Rosen exclaims excitedly over exclamation marks with Dr Florence Hazrat, who has a passion for them. They explore the history behind the first punctuation symbol to indicate emotion and ask why some people do not like using them at all. Florence is the author of An Admirable Point: A Brief History of the Exclamation Mark! Producer Beth O'Dea

Nihal Arthanayake has written a book based on his decades long experience of talking to people. Now he talks to Michael about what makes a good conversation. Producer Sally Heaven

Carmen Fought is a Californian Valley Girl, born and bred and she's, like, there's nothing wrong with using 'like.' And Michael's, like, come on Word of Mouth and tell us why. Producer Sally Heaven