The record book is essentially broken down into multiple parts, representing each section of the Rise of Iron expansion from the campaign, to patrolling the Plaguelands, and finally Crucible activities.
Similar to the SRL and Moments of Triumph 2 record books, Rise of Iron provides a much more detailed and expansive book, touching on all of the new content and providing milestones for players to reach. Seeing as fan reaction has been quite positive to this change, Bungie has taken that concept and expanded upon it even further in Destiny: Rise of Iron. Unlike the Year One version, this one was turned into a record book where fans could have a visual way to see what needed to be done and what sort of rewards where upcoming.
Prior to the launch of Destiny: Rise of Iron, Bungie reinvigorated the player base by introducing the new Moments of Triumph record book, where players could earn unique rewards for finishing off certain Taken King focused milestones.
Follow this helpful Destiny guide for the quick and easy method to earning the brand new Days of Iron armor set from the new Rise of Iron record book.