Outside journalism, Halligan has written chapters, pamphlets and short books with, among others Frank Field and Professor Lord Robert Skidelsky.
Liam Neeson | Liam Gillick | Liam Gallagher | Liam Fox | Liam Cahill | Liam Spencer | Liam Ó Maonlaí | Liam Clancy | Liam O'Flynn | Liam Hemsworth | Liam O'Flaherty | Liam McCarthy Cup | Liam Flood | Liam Brady | "Gentleman" Liam Flood | Liam Spencer (The Bold and the Beautiful) | Liam Sheedy | Liam Reilly | Liam Plunkett | Liam O'Brien | Liam Lawrence | Liam Jurrah | Liam Foran | Liam Donaldson | Liam Bridcutt | Liam Bartlett | Wat Chedi Liam | Ursula Halligan | Liam T. Cosgrave | Liam Sternberg |