For someone who's spent years poring over the works of Shakespeare, TS Eliot and Seamus Heaney, Queen's University PhD student Bebe Ashley's first book tackles a rather surprising subject - One Direction superstar Harry Styles.
And while the 25-year-old laughs off the suggestion she's obsessed by the mega-rich hitmaker, this intense young woman who earns extra cash working in a library has happily dedicated hundreds of hours of research into the man, his music and the pressures global fame have wrought upon him.
She's queued for concerts, logged on to Twitter in the early hours as his first solo tour snaked around the world to watch a Periscope of each show and devotes her spare time to tracking down rare memorabilia.
"Harry had a jumper in seven different colours and finally I've completed my jumper collection," she says proudly. "That was a big thing for me. I'd to get one of them sent to an American friend's address in the States as the seller wouldn't post internationally.
"I was also really pleased when I got a T-shirt imported from the last show of Harry's tour in Japan for just £15, which was a real bargain."
Harry Styles (26) has a famously flamboyant fashion sense and sketches of both the distinctive wide-legged sailor trousers that he wears on the cover of his Fine Line album and his signature bee earring feature on the striking cover on Ashley's book, Gold Light Shining.
It's a poetry collection that draws upon her forensic knowledge of the singer, whose hugely successful boyband shifted 70 million records and broke hearts worldwide. Many poems take their titles from track listings on Harry's albums and bounce off his stage appearances, interviews he's given or the experience of being a fan.
Yet ironically Ashley, who is studying at QUB's Seamus Heaney Centre for Poetry, had barely heard of Harry until three years ago when she was laid low with Freshers' Flu.
"I'd just arrived at Queen's to do an MA in poetry and ended up spending a weekend in bed feeling very ill and watching hours of YouTube," she explains.
"As you watch YouTube the algorithms build and it starts showing you more and more of the same thing. When I was a teenager, I was into Meat Loaf and Eighties music and didn't know One Direction.
"Suddenly, I found myself watching all these videos of One Direction on X Factor as well as all their 'hiatus' interviews. In five years they'd gone from being fresh-faced and out of their depth to these really confident young men.
"I started to notice that Harry had this really interesting cadence to his voice - and his vocabulary was very interesting too. I was taken aback. Who was this guy? I just wanted to know more and more about him.
"I began taking down his quotes and by the end of that weekend I had turned them into my first Harry poem."
Ashley, who received funding from the Arts Council of Northern Ireland for the project, also examines today's celebrity culture. She was especially struck by how teenage heart-throb Harry struggled with overnight fame - and thinks stardom still exacts a high price on him.
"I was very aware that he was the one with the most sex appeal, yet he was also so young when he was on X Factor and how the media treated him was awful," she says. "It was always so confrontational and must have felt completely overwhelming.
"And since I started writing this book, his celebrity has grown so much more. He was on a massive world tour last year and was due to tour again this year but it's been postponed to 2021 due to the pandemic.
"Harry had a haircut last week and there were so many news stories about it everywhere. I can only imagine how it must feel to try and live a life amid all that attention and scrutiny."
Isn't media coverage essential to Harry who's now worth £63m and who - let's face it - actively sought pop stardom by auditioning for X Factor?
"But how we treat celebrities has changed so much in the last few decades and our consumption of social media has contributed to that," counters Ashley. "Harry produces his work - he writes music, he's been in the film Dunkirk - yet how do you separate the artist from the art?
"He's very charismatic on stage and he seems to deal with all the attention but I'm also struck by how his motto for this year is 'Treat People with Kindness'. He's a good role model for that, and deserves to be treated kindly too."
Of course, there's a risk that by penning a book that draws on an intimate knowledge of Harry's life and work, Ashley could stand accused of contributing to the hysteria.
"I was very aware when I was writing it that I could be going too far, but the Harry I write about is very much a persona I've constructed for him, based around how he is on stage, how he performs. I focus on the public image of Harry, not the real Harry. I feel I don't know who the actual Harry Styles is.
"That's one of the reasons Harry is never referred to as Harry in any of the poems. He's sometimes 'the boy with the Gucci guitar strings', sometimes 'the showman' and once a 'sexy pirate prince' celebrating his Harris Reed look in Amsterdam in 2018."
A recurring theme in the book is the experience of being a Harry fan, which is captured vividly in her poem Kiwi/Kiwi/Kiwi:
The boy with the Gucci guitar strings is playing glam rock to a room full of strangers.
His photographer captures a group of girls in knock-off floral suits and pink sequin Chelsea boots
Hearts thumping heaving jumping, his final song shakes the sweat-slick stage on the concrete floor.
The guitarist who used to work in the pizza shop looks to the bassist, the keys, the drummer to know if this is normal. It is not normal: people are having the time of their lives.
Attending his Birmingham concert in 2018 convinced Ashley she should write more about Harry.
"The first time I saw Harry perform live, the energy was just infectious and it was then I really understood the showman element to it all. He was also so good at engaging with the crowd. That was the night I knew there was something about Harry, and something about Harry that I wanted to write about."
She was also surprised by how welcoming the crowd was. "Sometimes at concerts other fans won't talk to you but at Harry's shows everyone was very friendly."
Ashley was amazed to discover how a large number of fans make a decent living out of Harry.
"There's a lot of fan-made merchandise that is really interesting to look through. There are businesses run by young women that sell thousands of Harry Styles' T-shirts every year and they make good money from it. All of that extends the cultural experience."
She's defensive of being a music fan in general, seeing it as akin to a rite of passage that in time becomes washed with nostalgia.
"It always comes to an end because bands go out of fashion or people grow up. There's a lot of criticism of all the hysteria, but these same fans go on to be doctors, lawyers, cleaners, teachers, people who make real change in the world. Then one day they'll see old Polaroids of a concert or find an old band T-shirt at the back of the wardrobe… and that period in their lives comes back."
The epigraph for Gold Light Shining features a quote Harry gave to Rolling Stone magazine: "Everyone in that room is on the same page and everyone knows what I stand for. I'm not saying I understand how it feels. I'm just trying to say 'I see you'."
Beneath it, Ashley has written: "Harry, I'm not saying I understand how it feels. I'm just trying to say I see you."
In her poems - clever, witty and often merging literary - and pop culture references, Ashley hopes there's an empathy with Harry's experiences and emotions.
One of her favourites is Sweet Creature, named after one of his songs and which she took to a workshop run by the late Belfast poet Ciaran Carson.
"When writing it, I discovered the words 'sweet creature' appear in Act 3, Scene 3 of Othello, so I wrote the poem only using words found there. It also has a reference to One Direction's Girl Almighty.
"When I showed it to Ciaran I was still hiding the fact it was about Harry Styles, but he sensed something musical in it because he sang it the whole way through."
Another ingenious poem, Pretty Woman, is multi-layered with references to Harry. "There's Harry's song Woman, and then in an interview with James Corden, Harry talked about loving rom-coms, so I took the script of Pretty Woman and turned lines from it into a poem.
"It's a kind of six degrees of separation about Harry."
Ashley, who grew up in Bedfordshire, got a job at Kinghan Church for the deaf in Botanic Avenue shortly after arriving in Belfast.
As a child she loved the Sue Thomas F.B.Eye TV crime drama about a deaf woman helping with detectives and is now studying British Sign Language. She loves Belfast's "vibrant arts community" and her sign language has a Northern Irish accent. She wants to work as an interpreter and her next poetry book will chart that journey.
Laughing again, Ashley denies she's in love or even a little bit obsessed with Harry, though she would like to meet him. "Harry's lyrics are very good and he likes poetry - his work references Charles Bukowski and he reads Rumi - so I hope he'd appreciate my book for what it is. I've started carrying a copy of it around just in case he should walk through Belfast one day… though it does seem unlikely."
Gold Light Shining by Bebe Ashley is published by Banshee Press, £10