A Harlequin Romance Book Series in Order by Year – 1990
| # | Author | Book Title | Year |
| # 3025 | Victoria Gordon | Arafura Pirate | 1990 |
| # 3026 | Rosemary Hammond | Game Plan | 1990 |
| # 3027 | Rosalie Henaghan | Spell of the Mountains | 1990 |
| # 3028 | Day Leclaire | Jinxed | 1990 |
| # 3029 | Margaret Mayo | Conflict | 1990 |
| # 3030 | Sandra K. Rhoades | Foolish Deceiver | 1990 |
| # 3031 | Amanda Browning | The Asking Price | 1990 |
| # 3032 | Roz Denny | Red Hot Pepper | 1990 |
| # 3033 | Jane Donnelly | When We’re Alone | 1990 |
| # 3034 | Elizabeth Duke | Island Deception | 1990 |
| # 3035 | Melissa Forsythe | Queen of Hearts | 1990 |
| # 3036 | Betty Neels | No Need to Say Goodbye | 1990 |
| # 3037 | Kerry Allyne | Dark Memories | 1990 |
| # 3038 | Debbie Macomber | A Little Bit Country | 1990 |
| # 3039 | Jeneth Murrey | Impulsive Proposal | 1990 |
| # 3040 | Celia Scott | Rumor Has It | 1990 |
| # 3041 | Jessica Steele | Farewell to Love | 1990 |
| # 3042 | Alison York | The Maxton Bequest | 1990 |
| # 3043 | Katherine Arthur | Mountain Lovesong | 1990 |
| # 3044 | Angela Carson | Sweet Illusion | 1990 |
| # 3045 | Bethany Campbell | The Heart of the Sun | 1990 |
| # 3046 | Claudia Jameson | That Certain Yearning | 1990 |
| # 3047 | Rebecca Winters | Fully Involved | 1990 |
| # 3048 | Lee Stafford | A Song in the Wilderness | 1990 |
| # 3049 | Anne Beaumont | Another Time, Another Love | 1990 |
| # 3050 | Rosemary Carter | Partners in Passion | 1990 |
| # 3051 | Rosemary Hammond | Face Value | 1990 |
| # 3052 | Ellen James | Home for Love | 1990 |
| # 3053 | Betty Neels | The Chain of Destiny | 1990 |
| # 3054 | Angela Wells | Rash Contract | 1990 |
| # 3055 | Jenny Arden | Intense Involvement | 1990 |
| # 3056 | Elizabeth Barnes | Now and Forever | 1990 |
| # 3057 | Kate Denton | Home Safe | 1990 |
| # 3058 | Kay Gregory | Impulsive Butterfly | 1990 |
| # 3059 | Debbie Macomber | Country Bride | 1990 |
| # 3060 | Miriam MacGregor | Man of the House | 1990 |
| # 3061 | Katherine Arthur | One More Secret | 1990 |
| # 3062 | Bethany Campbell | Dancing Sky | 1990 |
| # 3063 | Madeleine Ker | Passion’s Far Shore | 1990 |
| # 3064 | Eva Rutland | No Accounting for Love | 1990 |
| # 3065 | Jessica Steele | Frozen Enchantment | 1990 |
| # 3066 | Sara Wood | Master of Cashel | 1990 |
| # 3067 | Angela Carson | Another Man’s Ring | 1990 |
| # 3068 | Dana James | Love’s Ransom | 1990 |
| # 3069 | Ellen James | The Turquoise Heart | 1990 |
| # 3070 | Leigh Michaels | A Matter of Principal | 1990 |
| # 3071 | Betty Neels | Hilltop Tryst | 1990 |
| # 3072 | Shannon Waverly | A Summer Kind of Love | 1990 |
| # 3073 | Jeanne Allan | Bluebirds in the Spring | 1990 |
| # 3074 | Sally Heywood | Trust Me, My Love | 1990 |
| # 3075 | Catherine Leigh | Place for the Heart | 1990 |
| # 3076 | Debbie Macomber | Rainy Day Kisses | 1990 |
| # 3077 | Jessica Steele | Passport to Happiness | 1990 |
| # 3078 | Kate Walker | Jester’s Girl | 1990 |
| # 3079 | Bethany Campbell | The Ends of the Earth | 1990 |
| # 3080 | Anne Marie Duquette | Unlikely Places | 1990 |
| # 3081 | Catherine George | Consolation Prize | 1990 |
| # 3082 | Kay Gregory | Amber and Amethyst | 1990 |
| # 3083 | Miriam MacGregor | Carville’s Castle | 1990 |
| # 3084 | Betty Neels | The Convenient Wife | 1990 |
| # 3085 | Emma Darcy | Pattern of Deceit | 1990 |
| # 3086 | Leigh Michaels | An Imperfect Love | 1990 |
| # 3087 | Celia Scott | Give Me Your Answer Do | 1990 |
| # 3088 | Lee Stafford | A Perfect Marriage | 1990 |
| # 3089 | Nicola West | Snow Demon | 1990 |
| # 3090 | Rebecca Winters | The Story Princess | 1990 |
| # 3091 | Heather Allison | Deck the Halls | 1990 |
| # 3092 | Val Daniels | Silver Bells | 1990 |
| # 3093 | Stephanie Howard | Master of Glen Crannach | 1990 |
| # 3094 | Madeleine Ker | Duel of Passion | 1990 |
| # 3095 | Jessica Steele | Unfriendly Proposition | 1990 |
| # 3096 | Quinn Wilder | High Heaven | 1990 |
