This is the fifteenth edition of the lecture notes. They were first published in 1987 as a summary of the material used in the biannual epilepsy teaching weekend organised under the auspices of the UK Chapter of the International League against Epilepsy. (Lecture series consist of a total of 59 chapters. Section one - introduction (chapter 1-2). Section two - basic science (chapters 3-5). Section (chapters 6-16). Section four - differential diagnosis (chapter 17-19). Section five - investigations (chapter 20-24). Section six - medical treatment of epilepsy (chapters 25-35). Section seven - outcome (chapters 36-40). Section eight - special groups (chapters 41-44). Section nine - surgical treatment of epilepsy (chapters 45-49). Section ten - social aspects (chapters 50-56). Section eleven - provision of care (chapters 57-59). All chapters available at: https://www.epilepsysociety.org.uk/lecture-notes-0#.Wq-cn8NubIU)