When handling an original book that contains the only known account of the First Vision written by the Prophet's hand, it's wise to take precautions.

For one thing, "You don't want to lick your finger to turn pages," says Robin S. Jensen, a documentary editor.

For that, Jensen uses an archival spatula, a pencil-size metal instrument with a narrow handle and a round, flat end. It's one of the many tools of his trade.

As a volume co-editor for the Joseph Smith Papers, Jensen will on occasion have treasures of Mormon history propped up on a cardboard cradle in his office at the Church History Library. His job, and the objective of the entire project, is to delve as deeply into the documents as possible while, at the same time, ensuring their preservation. The tools they employ can be as advanced as multispectral imaging technology and as standard as an inexpensive magnifying loop. They can also be as simple as teamwork, a good set of eyes and the patience to stare at a document for hours.

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