Two evening lectures by Michelle P Brown and Andrew Langdon were held in St Buryan July 2016. The lectures were delivered without notes, as they are both very experienced lecturers. However here is a suggested reading list for those who are keen to either learn more or absorb some of the experience of the lectures.
Archaeological Survey of Mount's Bay (CISMAS, 2009)
Michelle P. Brown, How Christianity Came to Britain and Ireland (Oxford, 2006),
Michelle P. Brown, The World of the Lindisfarne Gospels (London, 2011)
Michelle P. Brown and Tom Goskar, ‘The Gulval Evangelists’, British Archaeology 146 (Jan/Feb 2016)
Michelle P. Brown, St Michael’s Way, a Walk Through Time: History and Mystery (Friends of St Michael’s Way, Penzance, 2016)
Michelle P. Brown, Art of the Islands: Celtic, Pictish, Anglo-Saxon and Viking Visual Culture c.450-1050 (Bodleian: Oxford, due out Sept. 2016)
Charles Henderson, The Ecclesiastical History of the 109 Western Parishes of Cornwall (Truro, 1956)
Nicholas Orme, The Saints of Cornwall (Oxford, 2000)
Nicholas Orme, Cornwall & the cross: Christianity, 500-1560 (London, 2007)
Nicholas Orme and Oliver Padel, A History of the county of Cornwall. Vol.II. Religious history to 1560 (Woodbridge, 2010)
Charles Thomas & P A S Pool, The principal antiquities of the Land's End district (Cornwall Archaeological Society, 1968)
Charles Thomas, Exploration of a drowned landscape : archaeology and history of the Isles of Scilly (London,1985)
Charles Thomas, And shall these mute stones speak?: post-Roman inscriptions in western Britain (Cardiff, 1994)
Charles Thomas & Joanna Mattingly, The history of Christianity in Cornwall: AD 500-2000
(Truro, 2000)
Ann Preston-Jones et al., Corpus of Anglo-Saxon stone sculpture. Volume XI, Early Cornish sculpture (Oxford, 2013)
Sam Turner, Making a Christian landscape. The countryside in early medieval Cornwall, Devon and Wessex (Exeter, 2006)
Craig Weatherhill, Belerion : ancient sites of Land's End (Penzance, 1986)
Books about Cornish stone crosses by Andrew Langdon and published by the Federation of Old Cornwall Societies
Stone Crosses in North Cornwall 1992 ISBN 0-902660-20-9
Stone Crosses in Mid Cornwall 1994 ISBN 0-902660-21-7
Stone Crosses in East Cornwall 1996 ISBN 0-902660-24-1
Stone Crosses in North Cornwall 1996 (2nd edition) ISBN 0-9528684-0-7
Stone Crosses in West Penwith 1997 ISBN 0-902660-25-X
Stone Crosses in West Cornwall 1999 ISBN 0-902660-28-4
Stone Crosses in Mid Cornwall 2002 (2nd edition) ISBN 0-902660-30-6
Stone Crosses in East Cornwall 2005(2nd edition) ISBN 0-902660-32-2
Also
Early Cornish Sculpture 2013, Preston-Jones, Ann & Okasha, Elisabeth published by the British Academy ISBN 978-0-19-726565-9
‘St Buryan Crosses’, Cornish Archaeology, 1997, XXXVI, 107-28 Preston-Jones, A. & Langdon, A. G.
Downloadable at http://cornisharchaeology.org.uk/volume-36-1997/
There are also many notes, reports and articles about Cornish crosses in Old Cornwall and Cornish Archaeology over the past 30 years.