"Scoth na scoláireachta ...! Baineann saothar Lacey leis an naoú ab ar Oileán Í, Adomnán (c.625-704), comharba Cholm Cille agus duine de na saoithe is tábhachtaí a bhain leis an seachtú céad. Moltar an duine seo mar gheall ar a éachtaí i réimsí éagsúla: scríobhaí agus sagart, bainisteoir agus taidhleoir, staraí agus dlíodóir. Tugtar aird, ar ndóigh, ar a bheathaisnéis cháiliúil a chum sé in ómós dá réamhtheachtaí féin, Colm Cille, agus tugtar saothar tábhachtach eile dá chuid chun suntais: treor a chum sé do na suímh éagsúla den Talamh Naofa." Malachy Ó Néill, Comhar, December 2021
“Adomnán, the Donegal man who was ninth abbot of the monastery on Iona off the Scottish coast - always played second fiddle to his predecessor and relative, Columba or Colmcille. However, as Lacey is keen to point out: ‘Some people might think that it is close to being a mortal sin to say it, but there is a lot of evidence to suggest that Adomnán may have been at least as important - and maybe a bit more so - than Columba.’ In Adomnán, Adhamhnán, Eunan: Life and afterlife of a Donegal Saint Brian Lacey traces the story of Adomnán (c.625–704) from his earliest days in what is now Donegal to his role as one of the most significant churchmen and intellectuals of the seventh century.” Sean McLaughlin, The Derry Journal, Tuesday, July 6, 2021
“If anybody deserves a Wikipedia entry its Brian Lacey, who must be in the running for the title of Person Who Knows Most About Donegal History (6th-10th Century) ... a cracking new book" Martin McGinley, The Donegal News, Thursday, June 24, 2021