Inis Dom 4 forms part of a six book series for Ranganna 1-6. Compiled by best-selling author Liam Breatnach, it takes a communicative approach to learning Irish. The lessons in each book cover the four key areas of the new curriculum: Éisteacht, Labhairt, Léitheoireacht, Scríobhneoireacht. It includes everything a pupil needs in one book - comhrá; éisteacht; léamh; filíocht; drámaíocht; gramadach.

Its also based on the topics of the new curriculum: Mé Féin, Siopadóireacht, Sa Bhaile, Caitheamh Aimsire, An Scoil, Éadaí, Bia, An Aimsir, An Teilifís, Ócáidí Speisialta. Foclóir grádaithe: developed and expanded through the classes. Regular repetition of words and phrases. Clear explanations of grammar with back-up exercises. Emphasis on what is 'achievable' with graded, manageable tasks. Fun exercises included - Tomhais, Rabhlóga, Caith an Dísle, Bris an Cód.