This is a pretty good guide to effective public speaking – its centrepiece is a very detailed analysis of Barack Obama’s “Yes We Can” speech from 2008. Actually I didn’t like it as much as I thought I would – somehow I was expecting something less prosaic from the author of The Cambridge Encyclopedia of Language, “the most exciting, readable and comprehensive book on language ever written”. Still, this book does have lots of good advice and some useful tips if you are giving speeches or making presentations. But if you’re not, maybe just dip into The Cambridge Encyclopedia of Language instead.