Mills and Boon Duet
Mills & Boon started to release 2-in-one volumes of reissued stories by one author as an imprint in September 1983, supplementing the Mills & Boon Best Seller Romances. At first the titles were called The Best of "Author", which changed to The "Author" Collection in 1986 and to "Author" Duet in June 1992.
Starting as one title per month the imprint was reduced to one volume bi-monthly in 1985. Since October 1990 two titles were released in the even months. In August 1995 the Duet and the Mills & Boon Best Seller Romances were discontinued in favour of the themed Mills & Boon By Request imprint.
1985, The Best of "Author" 
1990, The "Author" Collection 
1992, "Author" Duet
The Best of "Author"
- Janet Dailey, September 1983 (To Tell The Truth / That Boston Man)
- Anne Mather, November 1983 (Fallen Angel / Follow Thy Desire)
- Violet Winspear, January 1984 (The Sheikh's Captive / The Awakening Of Alice)
- Carole Mortimer, February 1984 (Savage Interlude / Passionate Winter)
- Charlotte Lamb, March 1984 (Call Back Yesterday / Autumn Conquest)
- Anne Weale, April 1984 (First Officer / Stowaway)
- Janet Dailey, May 1984 (Bed Of Grass / Heart Of Stone)
- Anne Mather, June 1984 (Images Of Love / Sandstorm)
- Carole Mortimer, July 1984 (Tempestuous Flame / Tempted By Desire)
- Charlotte Lamb, August (Devil's Arms / Love Is A Frenzy)
- Anne Weale, September 1984 (Now Or Never / Separate Bedrooms)
- Anne Mather, October 1984 (Apollo's Seed / Lure Of Eagles)
- Sally Wentworth, November 1984 (Liberated Lady / Shattered Dreams)
- Robyn Donald, December 1984 (Summer At Awakopu / Wife In Exchange)
- Janet Dailey, January 1985 (Wild And Wonderful / One Of The Boys)
- Charlotte Lamb, February 1985 (Seduction / Compulsion)
- Sally Wentworth, April 1985 (King Of Culla / The Judas Kiss)
- Carole Mortimer, June 1985 (Devil Lover / Engaged To Jarrod Stone)
- Anne Weale, August 1985 (Blue Days At Sea / Rain Of Diamonds)
- Anne Mather, October 1985 (Innocent Obsession / Forbidden Flame)
- Betty Neels, December 1985 (Britannia All At Sea / The Little Dragon)
The "Author" Collection
- Penny Jordan, February 1986 (Falcon's Prey / Tiger Man)
- Dinah Dean, April 1986 (Flight From The Eagle / The Eagle's Fate)
- Charlotte Lamb, June 1986 (Illusion / Retribution)
- Lisa Cooper, August 1986 (Doctor In Plaster / The New Pupil Midwife)
- Anne Mather, October 1986 (Season Of Mists / Impetuous Masquerade)
- Penny Jordan, December 1986 (Blackmail / The Caged Tiger)
- Anne Weale, February 1987 (Passage To Paxos / Wedding Of The Year)
- Helen Bianchin, April 1987 (The Savage Touch / Wildfire Encounter)
- Carole Mortimer, June 1987 (Burning Obsession / Elusive Lover)
- Janet Dailey, August 1987 (Northern Magic / A Tradition Of Pride)
- Charlotte Lamb, October 1987 (Stranger In The Night / A Wild Affair)
- Penny Jordan, December 1987 (Forgotten Passion / Phantom Marriage)
- Sara Craven, February 1988 (Counterfeit Bride / Pagan Adversary)
- Penny Jordan, April 1988 (Campaign For Loving / The Darker Side of Desire)
- Anne Mather, June 1988 (An Elusive Desire / Sirocco)
- Carole Mortimer, August 1988 (Lost Love / A Past Revenge)
- Charlotte Lamb, October 1988 (A Naked Flame / For Adults only)
- Penny Jordan, December 1988 (Rules Of The Game / What You Made Me)
- Janet Dailey, February 1989 (Northern Magic / A Tradition Of Pride)
- Anne Mather, April 1989 (Act of Possession / Pale Orchid)
- Robyn Donald, June 1989 (Guarded Heart / Return To yesterday)
- Charlotte Lamb, August 1989 (The Bride Said No / Man Hunt)
- Carole Mortimer, October 1989 (A No Risk Affair / Trust in Tomorrow)
- Penny Jordan, December 1989 (Time Fuse / You Owe Me)
- Robyn Donald, February 1990, (Captives Of The Past / A Willing Surrender)
- Helen Bianchin, April 1990 (Bitter Encore / Dark Tyrant)
- Charlotte Lamb, June 1990, (Infatuation / Scandalous)
- Roberta Leigh, August 1990, (Maid To Measure / No Time For Marriage)
- Anne Mather, October 1990 (An All-Consuming passion / Night heat)
- Sara Craven, October 1990 (The Marriage Deal / Escape Me Never)
- Betty Neels, December 1990 (A Summer Idyll / The Secret Pool)
- Carole Mortimer, December 1990 (Hawk's Prey / Trust In Summer Madness)
- Emma Darcy, February 1991 (The Wrong Mirror / The Unpredictable Man)
- Penny Jordan, February 1991 (Injured innocent / The Hard Man)
- Robyn Donald, April 1991 (Country Of The Heart / A Late Loving)
- Jessica Steele, April 1991 (Fortunes Of Love / Unfriendly Alliance)
- Carole Mortimer, June 1991 (After The Loving / A Rogue And A Pirate)
- Sally Wentworth, June 1991 (Passionate Revenge / Ultimatum)
- Roberta Leigh, August 1991 (A Racy Affair / Too Bad To Be True)
- Madeleine Ker, August 1991 (Frazer's Law / Judgement)
- Carole Mortimer, October 1991 (Lady Surrender / Lovers In The Afternoon)
- Charlotte Lamb, October 1991 (Love In The Dark / Circle Of Fate)
- Penny Jordan, December 1991 (An Expert Teacher / For One Night)
- Betty Neels, December 1991 (Never Say Goodbye / Year's Happy Ending)
- Betty Neels, February 1992 (At The End Of The Day / Never The Time And The Place)
- Patricia Wilson, February 1992 (A Moment Of Anger / Bride Of Diaz)
- Sara Craven, April 1992 (Alien Vengeance / Dark Paradise)
- Sandra Field, April 1992 (Attraction Of Opposites / One In A Million)
"Author" Duet
- Catherine George, June 1992 (Devil Within / Gilded Cage)
- Sally Wentworth, June 1992 (Dark Awakening / The Hawk Of Venice )
- Emma Darcy, August 1992 (Strike At The Heart / The Positive Approach)
- Anne Mather, August 1992 (Burning Inheritance / Trial Of Innocence)
- Robyn Donald, October 1992 (Long Journey Back / Smoke in the Wind)
- Patricia Wilson, October 1992 (A Lingering Melody / The Ortiga Marriage)
- Catherine George, December 1992 (Touch Me in the Morning / Man of Iron)
- Carole Mortimer, December 1992 (Taggart's Woman / Secret Passion)
- Emma Goldrick, February 1993 (King Of The Hill / If Love Be Blind)
- Charlotte Lamb, February 1993 (Heat Of The Night / Hide And Seek)
- Penny Jordan, April 1993 (Loving / Too Short A Blessing)
- Roberta Leigh, April 1993 (No Man's Mistress / An Impossible Man To Love)
- Carole Mortimer, June 1993 (Velvet Promise / Tangled Hearts)
- Sally Wentworth, June 1993 (Mistaken Wedding / Satan's Island)
- Sara Craven, August 1993 (Devil And The Deep Sea / King Of Swords)
- Anne Mather, August 1993 (A Fever In The Blood / Dark Mosaic)
- Patricia Wilson, October 1993 (Guardian Angel / Temporary Bride)
- Jessica Steele, October 1993 (To Stay Forever / When The Loving Stopped)
- Penny Jordan, December 1993 (Potential Danger / Beyond Compare)
- Emma Darcy, December 1993 (A Priceless Love / The Aloha Bride)
- Carole Mortimer, February 1994 (Elusive As The Unicorn / Memories Of The Past)
- Susan Napier, February 1994 (True Enchanter / Fortunes's Mistress)
- Betty Neels, April 1994 (A Suitable Match / The Most Marvellous Summer)
- Emma Darcy, April 1994 (Pattern Of Deceit / Bride Of Diamonds)
- Helen Bianchin, June 1994 (Touch The Flame / The Stefanos Marriage)
- Patricia Wilson, June 1994 (A Secret Understanding / And Stormy Surrender)
- Roberta Leigh, August 1994 (Man On The Make / A Most Unsuitable Wife)
- Penny Jordan, August 1994 (Breaking Away / Rival Attractions)
- Robyn Donald, October 1994 (A Summer Storm / No Place Too Far)
- Charlotte Lamb, October 1994 (Spellbinding / Dark Music)
- Lynne Graham, December 1994 (An Insatiable Passion / A Fiery Baptism)
- Anne Mather, December 1994 (Betrayed / Diamond Fire)
- Emma Darcy, February 1995 (The Ultimate Choice / Too Strong To Deny)
- Jessica Steele, February 1995 (Farewell To Love / Hidden Heart)
- Penny Jordan, April 1995 (Out Of The Night / Second Time Loving)
- Susan Napier, April 1995 (Deal Of A Lifetime / Tempt Me Not)
- Carole Mortimer, June 1995 (Fated Attraction / Saving Grace)
- Patricia Wilson, June 1995 (Dangerous Obsession / Bond Of Destiny)
