Order of Book Series
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Ali Hazelwood Books in Order

Ali Hazelwood has written 19 books, published between 2021 and 2025. The first book is The Love Hypothesis (2021) and the newest is Hot for Slayer (2025). Publication order is the reading order below.

Books
19
Published
2021–2025
Confirmed
15 of 19 titles
Pages on record
1,520 in 4 of 19 books
See all 19 books in order Printable Ali Hazelwood checklist
Photo of Ali Hazelwood, author

Romance novelist Ali Hazelwood is Italian and works as a neuroscience professor in the United States. Women in STEM fields and academia run through much of the fiction. The debut novel, The Love Hypothesis (2021), was a New York Times best seller and became a feature film. The catalogue counts 19 books between 2021 and 2025, ending with Hot for Slayer, and names the series STEMinist Novellas, Love Hypothesis, Bride, Not in Love and Bound and Unbound. Hazelwood continues to publish.

The Love Hypothesis follows Olive Smith, a PhD student who does not believe in lasting relationships, unlike her best friend. The books follow Olive as she navigates love, science and dating.

How many Ali Hazelwood books are there?

Ali Hazelwood has 19 books, released between 2021 and 2025. They include 4 series and 5 titles listed outside any series.

Ali Hazelwood Books in Publication Order

The table lists all 19 Ali Hazelwood books in the order they were released, with the release year, the page count where one is on record, and how many independent book listings confirm each title. Catalogue data as of September 2026.

  1. Cover of The Love Hypothesis by Ali Hazelwood, book 1 of the Love Hypothesis series (2021)
  2. Cover of Love on the Brain by Ali Hazelwood, book 3 of the Love Hypothesis series (2022)
  3. Cover of Love, Theoretically by Ali Hazelwood (2023)
  4. Cover of Check & Mate by Ali Hazelwood (2023)
  5. Cover of Loathe to Love You by Ali Hazelwood, book 4 of the STEMinist Novellas series (2023)
  6. Cover of Bride by Ali Hazelwood, book 1 of the Bride series (2024)
  7. Cover of Not in Love by Ali Hazelwood, book 1 of the Not in Love series (2024)
  8. Cover of Mate by Ali Hazelwood, book 2 of the Bride series (2025)
  9. Cover of Deep End by Ali Hazelwood (2025)
  1. 1
    The Love HypothesisLove Hypothesis #12021 · 336 pages · confirmed 3/4
    2021336
    Buy at Amazon USAmazon UK
  2. 2
    The Love Hypothesis: Extra ChapterLove Hypothesis #22021 · confirmed 3/4
    2021–
    Buy at Amazon USAmazon UK
  3. 3
    Under One RoofSTEMinist Novellas #12022 · confirmed 2/4
    2022–
    Buy at Amazon USAmazon UK
  4. 4
    Stuck with YouSTEMinist Novellas #22022 · confirmed 3/4
    2022–
    Buy at Amazon USAmazon UK
  5. 5
    Below ZeroSTEMinist Novellas #32022 · confirmed 3/4
    2022–
    Buy at Amazon USAmazon UK
  6. 6
    Love on the BrainLove Hypothesis #32022 · 384 pages · confirmed 3/4
    2022384
    Buy at Amazon USAmazon UK
  7. 7
    Love, Theoretically2023 · confirmed 3/4
    2023–
    Buy at Amazon USAmazon UK
  8. 8
    Check & Mate2023 · 368 pages · confirmed 3/4
    2023368
    Buy at Amazon USAmazon UK
  9. 9
    Loathe to Love YouSTEMinist Novellas #42023 · confirmed 3/4
    2023–
    Buy at Amazon USAmazon UK
  10. 10
    BrideBride #12024 · confirmed 3/4
    2024–
    Buy at Amazon USAmazon UK
  11. 11
    Not in LoveNot in Love #12024 · confirmed 3/4
    2024–
    Buy at Amazon USAmazon UK
  12. 12
    Cruel Winter with YouUnder the Mistletoe Collection #32024 · confirmed 3/4
    2024–
    Buy at Amazon USAmazon UK
  13. 13
    Two Can Play2024 · confirmed 3/4
    2024–
    Buy at Amazon USAmazon UK
  14. 14
    BoundBound and Unbound #12025 · confirmed 2/4
    2025–
    Buy at Amazon USAmazon UK
  15. 15
    First2025 · confirmed 2/4
    2025–
    Buy at Amazon USAmazon UK
  16. 16
    MateBride #22025 · 432 pages · confirmed 3/4
    2025432
    Buy at Amazon USAmazon UK
  17. 17
    Problematic Summer RomanceNot in Love #22025 · confirmed 3/4
    2025–
    Buy at Amazon USAmazon UK
  18. 18
    Deep End2025 · confirmed 2/4
    2025–
    Buy at Amazon USAmazon UK
  19. 19
    Hot for SlayerScared Sexy #62025 · confirmed 4/4
    2025–
    Buy at Amazon USAmazon UK

Ali Hazelwood series in order

Each series linked below has its own reading-order page.

Ali Hazelwood books grouped by series

Each title below is a row in the publication-order table above. None of these groups has a reading-order page of its own on this site.

STEMinist Novellas

4 books

4 titles published under this heading without a numbered place in a series.

Not in Love in order

2 books
  1. 1. Not in Love
  2. 2. Problematic Summer Romance

Bound and Unbound in order

1 book
  1. 1. Bound

Under the Mistletoe Collection

1 book

1 title published under this heading without a numbered place in a series.

Scared Sexy in order

1 book
  1. 6. Hot for Slayer

Standalone books

5 books

5 Ali Hazelwood titles here are not listed as part of any series.

Do you have to read Ali Hazelwood books in order?

You only need to read Ali Hazelwood books in order within each series: the books listed here span 4 separate series, and each series has its own publication order.

What order should you read Ali Hazelwood books in?

Read Ali Hazelwood one series at a time, each in its own publication order: Love Hypothesis starts with The Love Hypothesis (2021) and Bride starts with Bride (2024). The earliest catalogued title overall is The Love Hypothesis (2021).

What is the first Ali Hazelwood book?

The Love Hypothesis (2021) is the first Ali Hazelwood book, and the numbered table above starts with it.

What is the newest Ali Hazelwood book?

Hot for Slayer (2025) is the newest Ali Hazelwood book released so far.

Is there a new Ali Hazelwood book coming?

No next Ali Hazelwood book is announced in the catalogue, which is a gap in the listings it merges rather than a sign that the run has ended.

Ali Hazelwood at a glance

Still publishing
Ali Hazelwood published a book as recently as 2025.
Release pace
Ali Hazelwood books have appeared more than one a year on average.
Length
1,520 pages across the 4 of 19 books with a recorded length, a median of 376 pages each.
Busiest decade
Most Ali Hazelwood books, 19 of 19, were published in the 2020s.
Corroboration
1 of the 19 titles appear in all four independent book listings, and 15 in at least three.

What the Ali Hazelwood books are about

8 of the 19 Ali Hazelwood books carry subject tags in Open Library's catalogue. The subjects below are the ones that recur across them, most frequent first: american literature is tagged on 5 of 8. The subjects are cataloguers’ headings, not a plot summary.

  • American literature 5 of 8 books
  • Romance 2 of 8 books