I have Hammer and Helm and Quintessential Dwarf.
I was looking for a 3e version of the old AD&D Complete Guide to Dwarves. Neither is precisely what I was looking for, although Quintessential Dwarf is closer to my ideal.
Hammer & Helm
ten pages of overview about Dwarves
ten pages of feats
twenty five pages of prestige classes
fifteen pages of creatures (monsters, templates, etc.)
fifteen pages of spells
twenty pages of equipment and magic items
ten pages of generic dwarf NPC stats
Quintessential Dwarf
ten pages of overview
thirteen pages of prestige classes
ten pages of dwarven tricks and new ways to use skills
three pages of feats
ten pages of equipment
twenty pages of rune magic, item, and spells
six pages of religion
twelve pages of mining
six pages of creatures
six pages on dwarf holds