If you are a student, please read the notes below before sending me an email or nominating me as a referee for a job application. I receive a large amount of email each day, and have finally resigned myself to that fact that I can no longer respond to every message, and must take some concrete steps to reduce the amount.

• Course questions - if you are a student in Nottingham and have questions about any of my courses, please don't send them by email, but just come along to my office, room B31. There's no need to make an appointment, and I can give a faster and more detailed answer in person.

• Haskell questions - if you have questions about Haskell programming but are not a student on one of my courses in Nottingham, please ask your own lecturer or tutor in the first instance, and if they don't know the answer, try the appropriate Haskell mailing list. Of course, questions about my book or research concerning Haskell are very welcome.

• PhD applications - if you are interested in applying for a PhD studentship under my supervision, you will require a first-class Honours degree (or equivalent qualification) in Computer Science and/or Mathematics, and some previous experience of programming in a functional language such as Haskell.

• Internship applications - if you are interested in applying for an internship under my supervision, you will require your own funding, some previous experience of programming in a functional language such as Haskell, and your application must be specific to me, not a general application being sent to many people. I won't respond to applications that do not meet these requirements.

• References - I will normally be pleased to provide a reference for any of my personal tutees, and on occasion project students, but you must contact me in advance with an up-to-date copy of your CV to ask permission and discuss the details, otherwise I won't be able to respond to reference requests.