Sue Hadfield and Gill Hasson are both teachers and joint authors of ‘Bounce – use the power of resilience to live the life you want’ (Pearson Education, 2009) and ‘How to be Assertive in any situation’ (Pearson Education, 2010). Sue Hadfield is the author of 'Brilliant Positive Thinking' (Prentice Hall, 2011) and Gill Hasson is the author of 'Brilliant Communication Skills' (Prentice Hall, 2011).