Joseph Manjaly is a specialty registrar on the London North Thames ear, nose and throat rotation. He graduated from Bristol University, gaining a first-class intercalated BSc in physiology. He co-authored the first edition of this book whilst a core trainee in Wessex deanery before gaining one of the four London North Thames training posts awarded at national selection in 2012. He has held a number of Association of Otolaryngologists in Training positions and is regularly involved in training regionally. Peter Kullar is a Wellcome Trust Clinical Research Fellow and academic trainee in ear, nose and throat in the Northern Deanery. He graduated from Cambridge University and successfully obtained full Membership of the Royal College of Surgeons and Diploma of Otolaryngology - Head and Neck Surgery prior to co-authoring the first edition of this book. His specialist interests are otology and mitochondrial-associated hearing loss. Alison Carter is a specialty registrar on the London North Thames ear, nose and throat rotation, working at the Royal National Throat Nose and Ear Hospital. She graduated from Nottingham University and was awarded her Membership of the Royal College of Surgeons at the beginning of her core surgical training, followed by Diploma of Otolaryngology - Head and Neck Surgery nearing the end of it, having decided mid training to pursue an ear, nose and throat career. Richard Fox is a Registrar in Sydney, Australia having completed the MRCS (ENT) as a core surgical trainee in London. After graduating from Bristol University (2012) he has shown a commitment to medical education establishing a number of surgical courses and has been recognised with the UCL merit teaching award amongst other trainee prizes. He has also been faculty on the Royal of College of Surgeons post-graduate courses.