Craftsmanship: The Craftsman's Manual [xx35B997]

Can be found on many blacksmiths, general goods merchants, and loot drops.

Dwarven Smithing: The Art of Dwarven Blacksmithing [xx05CBC7]

Often sold by Calcelmo (Understone Keep, Markarth)

A copy sitting on a stone table near Calcelmo's arcane enchanter

Often sold by Urag gro-Shub (The Arcanaeum, College of Winterhold)

Sinderion's Field Laboratory (Blackreach), a copy on a shelf

A copy can be picked up in the following Dwemer ruins, usually sitting on a table or a shelf

Avanchnzel Boilery, there is a copy on a table among other dwemer items

Mzulft Aedrome, a copy on a wall shelf

Bthardamz Upper District, a copy on a table

Nchuand-Zel Quarters, a copy on a table

Tower of Mzark, a copy sitting on a corner shelf in a large room with an enchanted sphere

Morrowind Smithing: Blacksmithing of Morrowind [xx22886B]

Brand Shei in Riften

Raven Rock Blacksmith

Orcish Smithing: The Almanac of Orcish Blacksmithing [xx05CBCA]

Often sold by Moth gro-Bagol (Understone Keep, Markarth)

Cracked Tusk Keep, a copy sitting on a table inside one of the wooden storage sheds

Sold by Orc blacksmiths at the following strongholds, after becoming Blood-Kin

Gharol at Dushnikh Yal

Shuftharz at Mor Khazgur

Garakh at Largashbur (after helping Yamarz in "The Cursed Tribe" quest)

Nordic Smithing: Art of the Nordic Blacksmiths [xx228854]

Eorland Graymane at whiterun

Baldor Ironshaper at Skaal Villiage

Advanced Light Smithing: An Introduction to Scale Armors [xx05CBD4]

Often sold by Moth gro-Bagol (Understone Keep, Markarth)

Often sold at Warmaiden's (Whiterun )

Embershard Mine, a copy sitting on a table down at the forge

Halted Stream Camp, a copy on a table

Elven Smithing About Elven Craftmanship [xx05CBD7]

Often sold by Calcelmo (Understone Keep, Markarth)

Often sold by Urag gro-Shub (The Arcanaeum, College of Winterhold)

Advanced Blacksmithing - No book requirement

Arcane Craftmanship: Arcane Craftsmanship [xxAD3748]

Often sold by Calcelmo (Understone Keep, Markarth)

The Chill, sitting in a jail cage by a skeleton. There are frost atronachs there.

Received as a reward from Balimund in Riften for completing "Stoking the Flames" quest

On Katria's corpse in Arkngthamz

Glass Smithing: An Introduction to Malachite [xx05CBDC]

Alftand Animonculory, a copy sitting on a workbench in a room to the north

Wreck of The Pride of Tel Vos, near a bedroll

Steamscorch Mine, a copy on a table

Ebony Smithing: Harder than Steel - How to work with Ebony [xx05CBE0]

Alftand Animonculory, a copy sitting on a workbench in a room to the north

At the Orc stronghold of Narzulbur:

Sold by the blacksmith Dushnamub after becoming Blood-Kin

A copy sitting on a shelf inside one of the wooden storage sheds

Draconic Blacksmithing: The Compendium of Draconic Armor [xx05CBDA]

Sky Haven Temple, on a table in a small store room among other unique items (area becomes accessible during Alduin's Wall main quest)

Skuldafn North Tower (area is only accessible during The World-Eater's Eyrie main quest)

Daedric Smithing: Daedric Craftmanship [xx05CBDE]

Shrine of Mehrunes Dagon, in a master locked chest (area becomes accessible during the "Pieces of the Past" quest. Interesting surprises await in there...)

Legendary Blacksmithing - No book requirement

Stalhrim Smithing - No book requirement