For us, the most important part of writing is to make our reader fall in love, and an author can do this in a few ways.
Firstly with a relatable or sympathetic character. This doesn’t necessarily mean a hero, or even a generally nice person, but it is someone who the reader can connect to. For example Myrnin from The Glass House series. Myrnin had his quirks, wore bunny slippers, and was losing his mind; all of these things added to the reader feeling for him and connecting to him. He also killed his former assistant to connect her brain to his computer so that he could try to find a cure for his insanity. Not exactly a hero, but a memorable and favoured character.
Then there are high stakes. The higher the better. Putting good characters in bad situations or facing insurmountable odds pushes your reader to root for them, to become invested emotionally in the outcome of the characters you created. For example, Vampire Academy (major spoiler alert) uses high stakes throughout the series to keep the readers on edge but completely invested. The series starts with the Strigoi as the big bad, the stakes escalate when they begin targeting the royal line of vamps–the MC’s best friend is one of these royals. The series builds again when the main love interest is turned into a Strigoi, prompting the MC to hunt the man she loves.
Another way is to give us an unexpected ending. Turning your reader on their head can leave a lasting impression, especially when that final scene is one of happiness and joy. I do not know anyone who has said, ‘oh that book where the main character dies and the guy she loves is left alone forever, yes that book, I sooo wanna read that again’. Sorry, but give us a struggle and take us to some dark places but you better leave us and the MC in a better place at the end if you want a place in our heart.
Finally, and this could be considered the best way to secure a pace in our heart–Make us swoon. Sweep us off our feet. We need the characters to interact with each other in a way that connects to the reader. Give us the friends to lovers, enemies to friends, friends to enemies to friends to lovers.
The books you fall for are the ones you re-read. Rebecca fell for Vampire academy, and fell hardest for Last Sacrifice which she read three times. Heather fell hard for VA too, but also for The Lunar Chronicles and Simon vs the Homo Sapiens Agenda.
What words have you fallen for? What books are forever in your heart?