Mícheál Ó Siadhail.
Cambridge Cambridge University Press, 1989.
Part of the Cambridge Studies In Linguistics series, O Siadhail’s books investigates the grammar of Modern Irish. Comparison of dialects is offered where grammatical conventions are applied differently.
Déagián Ó Murchú & Pádraig Ó Murchú.
Tamhlacht [Ireland]: Folens Teo, [n.d].
This is one the most easy-to-follow works on Irish grammar due to its organization and focus (the conjugation of verbs). Each verb chart clearly indicates how to conjugate the verb in every tense, and even provides similar verbs. The index allows readers to quickly locate the verb they would like to conjugate.
By Éamonn Ó Dónaill.
Dublin: Gaelchultúir, 2010 Sample Chapter Available Online
This book strives to cover only the essential points of Irish grammar, while avoiding academic jargon. The 2 audio CDs allow learners to hear grammatical rules demonstrated aloud.