2003 – Leaf by Niggle – 1st Edition – Booklet – Trinity Forum
Contains a foreword by Alonzo L. McDonald and a four page discussion guide.
Leaf by Niggle
2014 – Leaf by Niggle – 2nd Trinity Edition – Booklet – Trinity Forum
Second edition from Trinity Forum. No longer in print. Contains a foreword by Alonzo L. McDonald and a discussion guide.