Helena Bester is the author of three authoritative books on ADHD and learning problems: 'Help, my kind makeer iets', 'Help, my child is causing chaos', and 'How to cope with AD/HD'...ver másHelena Bester is the author of three authoritative books on ADHD and learning problems: 'Help, my kind makeer iets', 'Help, my child is causing chaos', and 'How to cope with AD/HD'. Offering neurotherapy as an additional therapy in her practice since 2005, she no longer works only with children. Helena’s approach is a holistic one. Her sympathetic attitude and broad knowledge are a source of renewed hope for many.ver menos