Marie O'Neill's biography of Grace, "Grace Gifford Plunkett and Irish Freedom: Tragic Bride of 1916" can be ordered from

Irish Academic Press.

Irish Academic Press, a Dublin-based publishing company, has a wonderful catalog of Irish interest books and very helpful staff in both their Dublin and Portland, Oregon (US) offices.
Book review by Suzanne Barrett, About.com's Guide to Ireland for Visitors
 
The Irish Times review (with reviews of two other books about the Rising)
 
Speech by Síle de Valera, T.D., Minister for Arts, Heritage, Gaeltacht and the Islands at the launch of 'Grace Gifford Plunkett and Irish Freedom', Kilmainham Gaol, Tuesday, 29 February 2000.

Cover of Grace Biography

Jacket design is based on a drawing of teen-aged Grace by William Orphen. Mr. Orphen, one of Grace's instructors at the Dublin Metropolitan School of Art, included this portrait in his series on "Young Ireland".