http://www.uesp.net/wiki/Online:Dwemer_Style

There are 14 chapters and a full book (extremely rare) that drop from dwemer ruins' containers.

There are 14 pages in total, one for each slot/type. These are:

• Helm
• Shoulder
• Chest
• Gloves
• Belt
• Legs
• Boots
• Staves
• Bows
• Swords
• Maces
• Axes
• Shields
• Daggers

(not necessarily in the correct order)

Having them all allows you to craft every item in this style similar to having, for example, the motif "Redguard" does for the redguard style. There is also a possibility to find them as a complete motif book, but that is by official confirmation the lowest drop rate implemented in the game currently (with the possible exception of blue items in Cyrodiil "rewards for the worthy" mails).