Most Collection Quests begin by examining any of the members of that collection, which are harvested from special, random ground spawning nodes using the Collecting harvesting skill. Members of this collection can be found as follows:
Harvestable Pages: A fluttering piece of paper named ?.
Corpse Drops: Found as corpse loot on some or all mobs in the zone, or looted from Chests.
All collection members are from harvestable pages except as noted below:
Page 1: Also available as a corpse drop.
Page 5: Also available as a corpse drop.
Page 7: Also available as a corpse drop.
See this note about tome collections and page source data.