David Astle is a full-time word nerd. Regular crossword solvers will recognise his initials every Friday in The Age and SMH, short for Don’t Attempt. David is also a regular broadcaster on ABC Radio Melbourne and the one-time dictionary bloke on SBS’s Letters & Numbers. He’s the author of such verbal titles as Puzzled, Riddledom, Cluetopia and Wordburger – plus the kids’ book, David Astle’s Gargantuan Book of Words. His latest book is Rewording the Brain.