2. The system according to claim 1 , the steps further comprising: provide at least one of a presence and an absence of the documents with each of the classification codes in the clusters along that spine; and a number of the documents with each of the classification codes in the clusters along that spine, wherein the suggestion includes the number and at least one of the presence and the absence.
3. The system according to claim 2 , the steps further comprising: provide a visual classification suggestion for at least one of the clusters and one or more un-coded documents in that cluster, the suggestion comprising at least one of the presence and the absence and the number for that cluster.