Henryk Holowenko is an educational psychologist working for Devon LEA, where he has chaired a cross-county multidisciplinary working party which drew up guidelines on good practice in working with children with AD/HD. In addition, he has contributed to the BPS Working Party on AD/HD. Previously, he has been employed as a SEN teacher in inner London secondary schools and as a psychologist for the London Borough of Lewisham and East Sussex County Council. He has also been consultant psychologist to the Learning Assessment Centre, Horsham - a multiprofessional practice specialising in the assessment and treatment of AD/HD.