Books
Buntús Cainte 1-3
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The Buntús Cainte series was originally published in 1967 but holds up as an excellent language resource. Each book is a little over 120 pages with 60 sections each. Each section is two pages, the first page introduces some vocabulary and the second pages provides an example dialog using the vocabulary. Grammar is introduced implicitly as the dialogs get more complex as the books progress.
Audio is available for all three books online for free.
Collins Easy Learning Irish Grammar
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Collins Easy Learning Irish Grammar is an easy to use reference grammar. Sections are kept small with each grammar point receiving attention and examples. Although not a comprehensive grammar, this book is an extremely helpful resource for beginners.
Collins Easy Learning Irish Verbs
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Collins Easy Learning Irish Verbs conjugates the most common 115 Irish verbs. It also provides a reference for hundreds of common verbs. An extremely useful resource for Irish learners to get familiar with conjugations and irregular verb forms.
Colloquial Irish 1-2
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Colloquial Irish 1 and 2 are self study text books aimed at Irish CEFR/TEG levels A1 and A2 respectfully. Each chapter is broken down into sections including dialogs, vocabulary, grammar notes, cultural notes, and practice exercises. Audio for both books is available online for free.
Gaeilge Gan Stró - Beginners Level
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Gaeilge Gan Stró - Beginners Level is a self study textbook with dialogs, vocabulary and exercises suitable for complete beginners. Audio is included on CDs.
Harry Potter agus an Órchloch
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Harry Potter agus an Órcloch (Harry Potter and the Philosopher's Stone) is a good resource for anyone already familiar with the Harry Potter books.
Some language learners argue that Harry Potter is not a good resource due to the amount of uncommon language (wizard, magic, muggle, etc.). However, a critical aspect of language learning is finding resources that you are interested in and enjoy engaging with.
Duel text document
Short Stories in Irish
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If a full novel is too intimidating, Short Stories in Irish might be more appropriate. This book is broken down into 8 stories over 200 pages. Each story has 3 or 4 chapters, followed by a chapter summary, some key vocabulary, and questions about the chapter. The stories are diverse and the language is relatively simple aimed at A2-B1 levels. Due to the narrative, the words often repeat several times which is helpful for remembering them.
Audio is available, sold separately from the book.
Audio sample of first story