In historical order, not published order.

Links provided are Amazon affiliate links (which mean that I receive a small commission if you purchase using them, at no additional cost to you. Other editions/formats/bookshops are, of course, available). Please also ignore Amazon’s belief that the non-Regency novels are Regency romances. Some people just don’t know their historical periods.

You will notice several of the Contemporary novels do not currently have links: Heyer suppressed these later in her career (as well as some others, now republished), and I have not yet found links to available modern editions. I live in hope.

Medieval:
The Conqueror: Kindle here, Print here
My Lord John: Kindle here, Print here
Simon the Coldheart: Kindle here, Print here

Early Modern:
Beauvallet: Kindle here, Print here
Royal Escape: Kindle here, Print here
The Great Roxhythe: Print here

Georgian:
These Old Shades: Kindle here, Print here
Devil’s Cub: Kindle here, Print here
The Masqueraders: Kindle here, Print here
Powder and Patch (also known as The Transformation of Phillip Jettan): Kindle here, Print here
The Talisman Ring: Kindle here, Print here
The Convenient Marriage: Kindle here, Print here
The Black Moth: Kindle here, Print here
Faro’s Daughter: Kindle here, Print here

Regency:
Regency Buck: Kindle here, Print here
Cotillion: Kindle here, Print here
The Grand Sophy: Kindle here, Print
Frederica: Kindle here, Print here
Arabella: Kindle here, Print here
A Civil Contract: Kindle here, Print here
An Infamous Army: Kindle here, Print here
The Spanish Bride: Kindle here, Print here
Black Sheep: Kindle here, Print here
Lady of Quality: Kindle here, Print here
Bath Tangle: Kindle here, Print here
Friday’s Child: Kindle here, Print here
Venetia: Kindle here, Print here
The Nonesuch: Kindle here, Print here
The Corinthian: Kindle here, Print here
The Toll-Gate: Kindle here, Print here
The Unknown Ajax: Kindle here, Print here
The Reluctant Widow: Kindle here, Print here
False Colours: Kindle here, Print here
The Foundling: Kindle here, Print here
The Quiet Gentleman: Kindle here, Print here
Sprig Muslin: Kindle here, Print here
Sylvester: Kindle here, Print here
Pistols for Two (Republished as Snowdrift & Other Stories with three additional short stories) (short story collection): Kindle here, Print here
Cousin Kate: Kindle here, Print here
Charity Girl: Kindle here, Print here
April Lady: Kindle here, Print here

Detective:
A Blunt Instrument: Kindle here, Print here
Behold, Here’s Poison: Kindle here, Print here
They Found Him Dead: Kindle here, Print here
Duplicate Death: Kindle here, Print here
Why Shoot a Butler?: Kindle here, Print here
Footsteps in the Dark: Kindle here, Print here
The Unfinished Clue: Kindle here, Print here
Death in the Stocks: Kindle here, Print here
No Wind of Blame: Kindle here, Print here
Envious Casca (also known as A Christmas Party): Kindle here, Print here
Detection Unlimited: Kindle here, Print here

Contemporary:
Instead of the Thorn: Print here
Helen
Pastel
Barren Corn
Penhallow: Kindle here, Print here
Acting on Impulse (short story collection): Kindle here; Print here