Code Series    
S36 36 Hours
S36M 36 Hours (Mills & Boon)
ACN Acorn (Early Readers)
AIL Adventures in Love
AAR All Aboard Reading
AAR1 All Aboard Reading: Level 1
AAR2 All Aboard Reading: Level 2
AAR3 All Aboard Reading: Level 3
AARP All Aboard Reading: Picture Readers
AAC All-Action Classics (Graphic Novels)
AHA American Heroes: Against All Odds
AMR American Regency
AT Angela Thirkell
AMC The Anne Mather Collection
AH Aston Hall Romance
AUST The Australians
AR The Avon Romance
ATR Avon True Romance
BBU Babies & Bachelors USA (reissues)
BA Bachelor Auction (Mills & Boon)
BSR1 Bank Street Ready-to-Read: Level 1
BF Bantam Fanfare
BL Bantam Love Stories
BLS Bantam Love Stories Super Edition
BLH Bantam Love Stories: His. Hers. Theirs.
BRR Bantam Red Rose Romance
BAN Barbara Cartland - Bantam
CAM Barbara Cartland - Camfield
JOV Barbara Cartland - Jove
PYR Barbara Cartland - Pyramid
BCEC Barbara Cartland - The Eternal Collection
BCPC Barbara Cartland - The Pink Collection
BBN Best of Betty Neels
BBN2 Best of Betty Neels (Set 2)
BAC Bestselling Author Collection
BNC The Betty Neels Collection
BLG Big Little Golden Books
BU Born In The USA (reissues)
BRN Branches (Emerging Readers)
BNR Brand New Readers
BER Bright and Early Books for Beginning Readers
CMEO Cameo Romance
CES Candlelight Ecstacy Supreme
CER Candlelight Ecstasy Romance
CR Candlelight Romance
MCAS Castonbury Park
CTH The Cat in the Hat's Learning Library
AC Changes Romance
COL Circle of Love
CS Classic Starts (Sterling)
CH Close To Home (reissues)
HCR Code Red (Numbered)
HCR2 Code Red (reissues)
COLTM The Coltons (Mills & Boon)
COLT The Coltons (Numbered)
COOP Cooper's Corner
COOPM Cooper's Corner (Mills & Boon)
COT Cotillion Regency Romance
MCC Country Club
COV Coventry
CAH Cowboy at Heart
CC Crystal Creek (Numbered)
DT Daisy Thompson
DLU Dangerous to Love USA (reissues)
HDJ Delta Justice
DR Denise Robins
DPC Diana Palmer Collection
DPCA Diana Palmer Collection - Australia
DPEC Diana Palmer: The Essential Collection
DERP Disney Early Reader: Pre Level 1
DK1 DK Readers: Level 1
DK2 DK Readers: Level 2
DK3 DK Readers: Level 3
DK4 DK Readers: Level 4
DKP DK Readers: Pre-Level 1
DWL Dreamscapes: Whispers of Love (reissues)
DB Dreamspun Beyond
DD Dreamspun Desires
DER Dutton Early Readers
EL Emilie Loring
EN Encanto
EBL Entangled Bliss
EBR Entangled Brazen
ECO Entangled Covet
ECRA Entangled Crave
ECRU Entangled Crush
EDG Entangled Edge
EMB Entangled Embrace
EEA Entangled Ever After
EIG Entangled Ignite
EIN Entangled Indulgence
ELV Entangled Lovestruck
ESC Entangled Scandalous
ESCO Entangled Scorched
ESO Entangled Select Otherworld
EA Ever After (Love Inspired Reissues)
FAB Fabulous Fathers (reissues)
FAM Family (reissues)
SFS Family Secrets
FFB Famous Families: The Bravos
FFC Famous Families: The Cavanaughs
FF Famous Families: The Fortunes
FFM Famous Families: The McCabes
FR Festival Readers
FLH First Love UK
FHE For Her Eyes Only (reissues)
HFS Forrester Square
SFCM Fortune's Children (Mills & Boon)
SFC Fortune's Children (Numbered)
FCB Fortune's Children Brides
FCL Fortune's Children: The Lost Heirs
FCG Fortune's Childrens: The Grooms
FH Fortune's Heirs
FOT Fortunes of Texas
FOTR Fortunes of Texas Reunion
FOTRM Fortunes of Texas Reunion (Mills & Boon)
GLH Grace Livingston Hill
GTL Greatest Texas Love Stories of All Time (reissues)
GTL2 Greatest Texas Love Stories of All Time (Set 2) (reissues)
GL1 Green Light Readers: Level 1
GL2 Green Light Readers: Level 2
GL3 Green Light Readers: Level 3
GDR Grosset & Dunlap Reader
HCC Hard Case Crime
HAR Harlequin American Romance
HARP Harlequin American Romance Premiere
HBZ Harlequin Blaze
HC Harlequin Crosswinds
HCK Harlequin Crosswinds Keepsake
HD Harlequin Duets
HE Harlequin Everlasting
HFF Harlequin Famous Firsts
HFL Harlequin Flipside
HG Harlequin Gothic
HB Harlequin Heartbeat
HHW Harlequin Heartwarming
HHWR Harlequin Heartwarming (Reissues)
HH Harlequin Historical
HH1 Harlequin Historical (First Series)
HHS Harlequin Historical Subscription
HHU Harlequin Historical Undone
HI Harlequin Intrigue
HILP Harlequin Intrigue Large Print
HKR Harlequin Kimani Romance
KISS Harlequin KISS
HLA Harlequin Love Affair
HLAL Harlequin Love and Laughter
HMED Harlequin Medical
HN Harlequin NEXT
HPT Harlequin Petite
HPR Harlequin Premiere
HP Harlequin Presents
HPE Harlequin Presents Extra
HPELP Harlequin Presents Extra Large Print
HPLP Harlequin Presents Large Print
HPS Harlequin Presents Subscription
HRE Harlequin Regency
HR Harlequin Romance
HREX Harlequin Romance Extras
HRLP Harlequin Romance Large Print
HRS Harlequin Romance Subscription
HSC Harlequin Showcase
HSE Harlequin Signature Edition
HS Harlequin Super Romance
HSU Harlequin Super Romance (M&B)
HSLP Harlequin Super Romance Large Print
HT Harlequin Temptation
HOTW Heart of the West
HEA Hearth Romance
HSNG Heartsong Inspirational Romance
HR1 Hello Reader!: Level 1
HR2 Hello Reader!: Level 2
HR3 Hello Reader!: Level 3
HR4 Hello Reader!: Level 4
HCG Here Come the Grooms (reissues)
HHR2 Holiday House Readers: Level 2
HHR Hometown Reunion
HHM Hotel Marchand
HHMM Hotel Marchand (Mills & Boon)
HOR House of Romance
IAR I Am Reading
ICR An I Can Read Book
ICRM I Can Read It All by Myself
ICR1 I Can Read: Level 1
ICR2 I Can Read: Level 2
ICR3 I Can Read: Level 3
ICR4 I Can Read: Level 4
ICRP I Can Read: Picture Book
IGR1 I'm Going to Read: Level 1
IGR2 I'm Going to Read: Level 2
IGR3 I'm Going to Read: Level 3
IGR4 I'm Going to Read: Level 4
JDA Janet Dailey Americana
JDA1 Janet Dailey Americana (Set 2)
JF Jove: Friends
JHH Jove: Haunting Hearts
JHF Jove: Highland Fling
JH Jove: Homespun
JIE Jove: Irish Eyes
JL Jove: Love Letters
JM Jove: Magical Love
JO Jove: Our Town
JQ Jove: Quilting
JS Jove: Seduction Romance
JT Jove: Tea Rose
JTP Jove: Time Passages
KCR1 Kids Can Read: Level 1
KCR2 Kids Can Read: Level 2
KCR3 Kids Can Read: Level 3
TRU Kimani TRU
KIS Kismet
LOL Language of Love
LFR Leisure: Futuristic Romance
LFG Life, Faith & Getting It Right
LG Little Golden Books
LLR Living Lights Beginning Readers
SLLM Logan's Legacy (Mills & Boon)
SLL Logan's Legacy (Numbered)
SLL1 Logan's Legacy (Reissue)
LSCC Lone Star Country Club (Numbered)
L&L Love & Life
LFY Love Finds You
LI Love Inspired
LIH Love Inspired Historical
LILP Love Inspired Large Print
LIMR Love Inspired Mountain Rescue
LIS Love Inspired Suspense
LISLP Love Inspired Suspense Large Print
LICC Love Inspired: Cold Case
LF Love Spell: A Faerie Tale
LWK Love Spell: A Wink & a Kiss
LA Love Spell: Angel's Touch
LC Love Spell: Candleglow
LH Love Spell: Heartspell
LD Love Spell: It's a Dog's Life
LL Love Spell: Legendary Lovers
LP Love Spell: Perfect Heroes
LR Love Spell: Romance of the Millenium
LT Love Spell: The Times of Your Life
LTS Love Spell: Timeswept
LST Lovestruck!
LS Loveswept
LSC Loveswept Classic (Reissues)
LIL Lucky in Love
LW Lucy Walker
LGC The Lynne Graham Collection
MAIT Maitland Maternity
MAITM Maitland Maternity (Mills & Boon)
MMC Marry Me, Cowboy (reissues)
MAS Masquerade
MCF McFadden
HMN Mediterranean Nights
MAW Men at Work (reissues)
MMA Men Made In America (reissues)
MMA2 Men Made in America 2 (reissues)
MBS Mills & Boon Best Seller (reissues)
MBZ Mills & Boon Blaze
MZ2 Mills & Boon Blaze 2-in-1
MCH Mills & Boon Cherish
MCH2 Mills & Boon Cherish 2-in-1
MD Mills & Boon Desire
MD2 Mills & Boon Desire 2-in-1
ME Mills & Boon Enchanted
MHW Mills & Boon Heartwarming
MBH Mills & Boon Heroes
MBH2 Mills & Boon Heroes 2-in-1
MHR Mills & Boon Historical
MIA Mills & Boon Intimate - Australia
MI Mills & Boon Intrigue
MI2 Mills & Boon Intrigue 2-in-1
MMED Mills & Boon Medical
MMED2 Mills & Boon Medical 2-in-1
MMR Mills & Boon Modern Romance
MRE Mills & Boon Modern Romance Extra
MRH Mills & Boon Modern Romance Heat
MNR Mills & Boon New Romance
MNR2 Mills & Boon New Romance 2-in-1
MNOC Mills & Boon Nocturne
MBP Mills & Boon Presents
MRI Mills & Boon Riva
MB Mills & Boon Romance
MBA Mills & Boon Romance - Australia
MRS Mills & Boon Romantic Suspense
MSR Mills & Boon Sensual Romance
MSE Mills & Boon Special Edition
MSM Mills & Boon Special Moments
MSM2 Mills & Boon Special Moments 2-in-1
MSH Mills & Boon Super Historical
MSU Mills & Boon Super Romance
MSUP Mills & Boon Supernatural
MBT Mills & Boon Temptation
MT Mills & Boon Tempted
MTR Mills & Boon Tender Romance
MTL Mills & Boon True Love
MTL2 Mills & Boon True Love 2-in-1
ML Modern Love (reissues)
M Montana
MBR Montana Brides
MM Montana Mavericks (Numbered)
RBS Montana Mavericks: Return to Big Sky Country
MM2 Montana Mavericks: Wed In Whitehorn (Numbered)
ICRF My First I Can Read
MFR My First Reader
MR1 My Readers: Level 1
MR2 My Readers: Level 2
MR3 My Readers: Level 3
HM Mystique
NOCT Nocturne
PR1 Passport to Reading: Level 1
PR2 Passport to Reading: Level 2
PR3 Passport to Reading: Level 3
PJCE Penny Jordan Collector's Edition
PJC The Penny Jordan Collection
PRG Precious Gems
PRGH Precious Gems Historical
PROM Promise Romance
PER1 Puffin Easy-to-Read: Level 1
PER2 Puffin Easy-to-Read: Level 2
PER3 Puffin Easy-to-Read: Level 3
RR Rapture Romance
RHM Raven House Mysteries
RRG Read It Readers: Green Level
RRR Read It Readers: Red Level
RRY Read It Readers: Yellow Level
RFC Ready-for-Chapters
RTR1 Ready-to-Read: Level 1
RTR2 Ready-to-Read: Level 2
RTR3 Ready-to-Read: Level 3
RTRP Ready-to-Read: Pre-Level 1
RDI Red Dress Ink
RHAP Rhapsody Romance
RD River Deep
RDC River Deep Collection
R2R5 Road to Reading: Mile 5
RRP Rookie Reader Preschool
ROR Rookie Readers
RRL Rookie Ready to Learn
RN The Royal House of Niroli (Numbered)
SH Safe Haven (reissues)
SRB Scarlet Ribbons
SR1 Scholastic Reader: Level 1
SR2 Scholastic Reader: Level 2
SR3 Scholastic Reader: Level 3
SR4 Scholastic Reader: Level 4
SRP1 Scholastic Reader: Pre-Level 1
SC Second Chance at Love
SERS Serenade Saga
SER Serenade Sonata
SRR Signet Regency Romance
SBO Silhouette Bombshell
SD Silhouette Desire
SFL Silhouette First Love
SI Silhouette Inspirations
SIM Silhouette Intimate Moments
SR Silhouette Romance
HSR Silhouette Romance UK
SEN Silhouette Sensation
SS Silhouette Shadows
SSE Silhouette Special Edition
SSELP Silhouette Special Edition Large Print
SYT Silhouette Yours Truly
SE St. Elizabeth's Children's Hospital
SE2 St. Elizabeth's Children's Hospital (Mills & Boon)
STS The Steepwood Scandal
SIRE Step Into Reading: Early
SIR1 Step Into Reading: Level 1
SIR2 Step Into Reading: Level 2
SIR3 Step Into Reading: Level 3
SIR4 Step Into Reading: Level 4
SIR5 Step Into Reading: Level 5
SJCE Stephanie James Collector's Edition
HSM Stolen Moments
SAR1 Stone Arch Readers: Level 1
SAR2 Stone Arch Readers: Level 2
SAR3 Stone Arch Readers: Level 3
SNF Sunfire
SWD Sweet Dreams
TAP Tapestry
TTF This Time Forever
TT Timetwist (reissues)
THTH To Have and To Hold
TLA To Love Again
TD Trueblood Dynasty
HTT Trueblood Texas
TY Tyler
TYM Tyler (Mills & Boon)
VAL Valentine
VG Velvet Glove
WAR Warner Regency
WBDW Weddings By DeWilde
WBDW3 Weddings By DeWilde (Mills & Boon 2)
WBDW2 Weddings By DeWilde (Mills & Boon)
WL Western Lovers (reissues)
WL2 Western Lovers (Set 2) (reissues)
WS A Windswept Mystery/Romance
WOR1 World of Reading: Level 1
WOR2 World of Reading: Level 2
WOR3 World of Reading: Level 3
WORP World of Reading: Level Pre-1
WMEB World's Most Eligible Bachelors
WWM Worldwide Mysteries
YR1 Young Readers: Level 1
YR2 Young Readers: Level 2
YR3 Young Readers: Level 3
YR4 Young Readers: Level 4
BQ Zebra Bouquet
ZH Zebra Heartfire
ZL Zebra Lovegram
ZR Zebra Regency Romance
ZS Zebra Splendor
ZB Zebra: Ballad