There are 17 books in the The Horus Heresy Primarchs series. The newest book is Sanguinius which came out in 2022.

2
Leman Russ

Book cover of Leman Russ
The second title in The Horus Heresy: Primarchs series, a brand new sequence of novels from Black Library. Many are the sagas of Leman Russ, Lord of Winter and War, most fearsome of the Emperor's primarch sons. At the height of the Great Crusade, his Space Wolves fight to bring…

3
Magnus the Red

Book cover of Magnus the Red
Lord of the mystical and uncanny, Magnus the Red has long studied the ancient crafts of sorcery. A psyker without peer, save only for the Emperor himself, he commands his loyal followers of the Thousand Sons Legion in the Great Crusade, always vigilant for any lost knowledge they might recover…

4
Perturabo

Book cover of Perturabo
Born to a life of political conflict, Perturabo was always considered a child prodigy among the people of Olympia - indeed, his philosophical and scientific works were beyond compare. But then, after his rediscovery by the Emperor and decades of thankless military campaigning on the Great Crusade, the primarch begins…

5
Lorgar

Book cover of Lorgar
Most devoted of all the primarchs, it was Lorgar who first fell to the lure of Chaos. Once known as Aurelian, this golden son of the Emperor of Mankind found himself an outcast because he worshipped his father as a god. Humbled before the ruins of Monarchia, chastened and brought…

6
Fulgrim

Book cover of Fulgrim
The sixth title in The Horus Heresy: Primarchs series, focusing on Fulgrim, primarch of the Emperor's Children Legion.

Lord of Chemos and bearer of the Palatine Aquila, Fulgrim, primarch of the Emperor's Children, is determined to take his rightful place in the Great Crusade, whatever the cost. A swordsman without…

7
Ferrus Manus

Book cover of Ferrus Manus
The Great Crusade has swept across half the galaxy, a million human worlds now embracing the truth and reason that comes with allegiance to the rule of Terra. But even such unparalleled success comes at a cost. Rumours abound that the Emperor plans to step back from the Crusade and…

8
Jaghatai Khan

Book cover of Jaghatai Khan
As the Great Crusade burns across the stars, the primarch of the White Scars, Jaghatai Khan, must decide where his true allegiance lies.

Ever since the Imperium's rediscovery of the world of Chogoris, the White Scars' culture of warrior mysticism has sat uneasily with the ideals of Unity. As the…

9
Vulkan

Book cover of Vulkan
As the Emperor marshals his armies to reclaim the galaxy for the glory of mankind, one by one his Space Marine Legions are reunited with their missing primarchs. The XVIII Legion are still waiting to find their true identity, unaware their own lord has been found. In the Taras Division,…

10
Corax

Book cover of Corax
Book 10 of the succesful 'Horus Heresy Primarchs' Series. Focusses on Corax, the Primarch of the Raven Guard.

During the Great Crusade, it falls to the primarch Corax of the Raven Guard to humble the immense void-cities of the Carinae. Determined to bring these worlds into compliance, he unleashes the…

11
Angron

Book cover of Angron
Placed in command of a Legion he does not want, in service to a father he cannot forgive, Angron gives an ultimatum to his children, one that will set them down a path from which they can never return...

As the Emperor travels the galaxy at the head of his…

12
Konrad Curze

Book cover of Konrad Curze
Of all the Emperor's immortal sons, the primarchs, it is Konrad Curze whose legend is the darkest. Born in the shadows of Nostramo, a world of murderers, thieves and worse, is it any surprise that he became the figure of dread known only as the Night Haunter? Heed now the…

13
Lion El'Jonson

Book cover of Lion El'Jonson
Book 13 in The Horus Heresy Primarch Series

Each primarch is an exemplary being, derived from the Emperor’s own genetic stock to embody a facet of His personality. Their powers are unfathomable, but only one of them is the First. Lion El’Jonson is the paragon of what it is to…

14
Alpharius

Book cover of Alpharius
Book 14 in the much loved series, "The Horus Heresy: Primarchs"

Legends abound of the glorious – or infamous – deeds of the Emperor's sons. Yet almost nothing is known of Alpharius, the most mysterious of them all, for the Lord of the Alpha Legion is unparalleled in the art…

15
Mortarion

Book cover of Mortarion
Book 15 of "The Horus Heresy: Primarchs". Fantastic character focussed novel featuring the Primarch of the Death Guard legion.

Once, the Galaspar System suffered under the cruel regime of the Order. Billions of people toiled endlessly to enrich their masters, enduring short lives of poverty, squalor and fear. But Galaspar’s…

16
Rogal Dorn

Book cover of Rogal Dorn
Book 16 of "The Horus Heresy: Primarchs". Fantastic character focussed novel featuring the Primarch of the Imperial Fists legion.

As the Great Crusade enters its sixth decade, the fleets and armies of the Emperor spear out into the galaxy to bring the Imperial Truth to thousands of worlds. Expansion has…

17
Sanguinius

Book cover of Sanguinius
Book 17 of "The Horus Heresy: Primarchs". Fantastic character focussed novel featuring the Primarch of the Blood Angels legion.

Sanguinius is the Great Angel, most beloved of all the primarchs, his mighty exploits celebrated throughout the entire Imperium as the Crusade expands into the void. And yet the origins of…