Main group 1

• Fortson, Benjamin W., Indo-European language and culture: an Introduction, 2. ed., Chichester, Wiley-Blackwell, 2010 [i.e. 2009]
• Millar, Robert McColl, Trask's historical linguistics, 3rd edition., Abingdon, Oxon, Routledge, [2015]
• Campbell, Lyle, Historical linguistics: an introduction, 3., rev. edition, Edinburgh, Edinburgh University Press, [2013]

Main group 2

• Fortson, Benjamin W., Indo-European language and culture: an Introduction, 2. ed., Chichester, Wiley-Blackwell, 2010 [i.e. 2009]Compulsory*

• Mallory, J. P.; Adams, Douglas Q., The Oxford introduction to Proto-Indo-European and The Proto-Indo-European world, Oxford, Oxford University Press, 2006
• Encyclopedia of Indo-European culture, London, Fitzroy Dearborn, 1997
• Mallory, J. P., In search of the Indo-Europeans: language, archaeology and myth, London, Thames and Hudson, cop. 1989
• The Indo-European languages: edited by Anna Giacalone Ramat and Paul Ramat, London, Routledge, 1998

Main group 5

• Dahl, Östen, Grammatik., 2. uppl., Lund, Studentlitteratur, 2003

* Compulsory