This is a good introduction to the topic of Irish Music with a little bit on dance, more from the point of view of dance in relation to Music rather than as a full entity in it's own right.
It's well laid out with sections on history, 20th century revival and modern variants on the theme, being published in 1998 it misses out on the Riverdance Phenomena and the longevity of that. It even has some tunes in sheet music. It also has some stories connected with music, an exploration of the major instruments and their history with Irish music as well as the big names in Irish Music, both modern and older.
It does miss out on the fact that some players use tonic sol-fa to learn, as well as "notes" and playing by ear. It would be a 5* book if accompanied by a CD. I really did love how the pieces of music were either from the people mentioned or were related to the topic being discussed. This is a little gem of a book and a good foot in the door for people looking to learn about Irish Music and Dance.