For any self-published authors out there – I have blogged on Off The Shelf Book Promotions about publicising your book on Twitter. This post gives basic Twitter tips for writers, to help you hit the ground running when you sign up to Twitter.    Debbie’s book Sell Your Books aims to help self-published authors market their books. It is concise, well-written and chockablock with useful tips, from identifying your target market, planning your strategy to getting media coverage. While it is a must-buy for those who have published their own books, it also contains plenty of tips for those who are working with a publisher. As Debbie says, ‘If you…