Sandra Marton books in order
49 books in the catalogue, about 218 hours of reading in all; the shortest takes 3 hours and the longest 11 hours.
8 series and 33 standalone books in the catalogue.
Billionaires' Brides
3 books
O'Connells
6 books Keir O'Connell's Mistress length not known
The Sicilian Surrender 4.4 h Claiming His Love-Child length not known
The Sheikh's Convenient Bride length not known
The One-Night Wife 4.4 h 
The Sicilian Marriage 3.5 h Landon's Legacy
4 books An Indecent Proposal 3.4 h 
Guardian Groom 4.4 h
Guardian Groom 4.4 h Hollywood Wedding length not known
Spring Bride length not known
Sheikh Tycoons
3 books
The Sheikh's Defiant Bride 3.4 h The Sheikh's Wayward Wife length not known
The Sheikh's Rebellious Mistress 3.5 h Knight Brothers
3 books
Barons
8 books
Marriage on the Edge 5.3 h More Than a Mistress length not known
Slade Baron's Bride length not known
The Taming of Tyler Kincaid length not known
Mistress of the Sheik length not known
The Alvares Bride 3.5 h The Pregnant Mistress length not known
Raising the Stakes length not known
Wedding of the Year!
3 books
The Bride Said Never! 3.5 h The Divorcee Said Yes! length not known
The Groom Said Maybe! length not known
Orsini Brothers / Orsini Brides
6 books Raffaele: Taming His Tempestuous Virgin length not known
Dante: Claiming His Secret Love-Child length not known
Falco: The Dark Guardian 3.5 h Nicolo: The powerful Sicilian length not known
The Ice Prince length not known
The Real Rio D'Aquila length not known
Standalone books
From This Day Forward 3.5 h 
Lovescenes 4.1 h 
Deal with the Devil 3.5 h 
Heart Of The Hawk 3.5 h 
Cherish the Flame 3.5 h 
Night Fires 3.5 h 
Consenting Adults 3.5 h 
A Woman Accused 3.5 h 
No Need for Love 4.4 h 
Yesterday and Forever 4.4 h 
Emerald Fire 3.5 h 
A Proper Wife 3.5 h 
The Second Mrs Adams 3.4 h 
Christmas Affairs (2 editions) 6.9 h 
Mistress of the Sheikh 5.3 h 
The Bedroom Business 3.5 h 
Nine to Five 3.4 h 
Cole Cameron'S Revenge 3.4 h 
For Love or Money 7.0 h 
Seduced by a Sultan 10.6 h 
The Disobedient Virgin 3.5 h 
The Sicilian's Christmas Bride 4.1 h 
Billionaire Prince, Pregnant Mistress 4.6 h 
Dante 3.4 h 
His Contract Bride 7.9 h 
Raffaele 3.4 h 
Ramirez Wedding Deals 5.5 h 
Blackwolf's Redemption 3.4 h 
Falco 3.4 h 
Nicolo 3.4 h 
Not For Sale 5.2 h Escape for Valentine's 10.3 h 
Brazilian Escape 10.3 h