This page lists Helen Hoang books in publication order, series order, chronological order, collection editions, and recommended reading paths.

Quick Index
- Scope: Helen Hoang’s published romance novels and collection editions
- Default Order: Publication order
- Best Starting Point: The Kiss Quotient
- Order Matters: Lightly, but publication order is the cleanest path
- Core Series: The Kiss Quotient
- Main Format: Contemporary romance novels
- Current Primary Novel Count: 3
- Not to be confused with: Jamie Jo Hoang, a separate author
Reading Paths
1. Publication Order
Use this route for the original release sequence.
- The Kiss Quotient
- The Bride Test
- The Heart Principle
Fantastic Fiction lists The Kiss Quotient series in this same order: The Kiss Quotient, The Bride Test, then The Heart Principle.
2. Series Order
Best for a first complete read of the Kiss Quotient books.
- The Kiss Quotient
- The Bride Test
- The Heart Principle
3. Chronological Order
The practical timeline order matches the publication order.
- The Kiss Quotient
- The Bride Test
- The Heart Principle
4. Beginner Path
Shortest complete route through Hoang’s current fiction catalog.
- The Kiss Quotient
- The Bride Test
- The Heart Principle
5. Character-Connection Path
Useful for tracking how the books relate without treating them as one cliffhanger story.
- The Kiss Quotient: Stella Lane and Michael Phan
- The Bride Test: Khai Diep and Esme Tran
- The Heart Principle: Anna Sun and Quan Diep
6. Completionist Path
Full checklist route for readers and catalogers.
- The Kiss Quotient
- The Bride Test
- The Heart Principle
- Steamy Romance Three-Book Collection
- Translation editions, if tracking language-specific formats
- Audiobook editions, if tracking format-specific pages
Publication Order Master List
- The Kiss Quotient (2018) – Novel – The Kiss Quotient #1
- The Bride Test (2019) – Novel – The Kiss Quotient #2
- The Heart Principle (2021) – Novel – The Kiss Quotient #3
Penguin Random House currently lists Helen Hoang’s books as The Heart Principle, The Bride Test, and The Kiss Quotient, and Hoang’s own site navigation lists the same three novels.
Series Order Checklist
The Kiss Quotient
- The Kiss Quotient (2018) – Novel – The Kiss Quotient #1
- The Bride Test (2019) – Novel – The Kiss Quotient #2
- The Heart Principle (2021) – Novel – The Kiss Quotient #3
Book-by-Book Placement Notes
The Kiss Quotient
- Year: 2018
- Format: Novel
- Series Placement: The Kiss Quotient #1
- Reading Status: Best starting point
- Notes: Introduces the series framework and the first central couple.
The Bride Test
- Year: 2019
- Format: Novel
- Series Placement: The Kiss Quotient #2
- Reading Status: Read after The Kiss Quotient
- Notes: Companion novel with a new central couple and character-world connection to the first book.
The Heart Principle
- Year: 2021
- Format: Novel
- Series Placement: The Kiss Quotient #3
- Reading Status: Read third
- Notes: Final listed primary novel in the current Kiss Quotient sequence. Penguin Random House lists the publication date as August 31, 2021.
Collection Editions
- Steamy Romance Three-Book Collection (2022) – Omnibus – The Kiss Quotient series
Fantastic Fiction lists Steamy Romance Three-Book Collection as an omnibus edition for the Kiss Quotient series.
Edition and Format Notes
- Paperback editions: Format variants, not separate reading-order entries.
- Ebook editions: Format variants, not separate reading-order entries.
- Audiobook editions: Format variants, not separate reading-order entries.
- Translation editions: Language variants, not separate reading-order entries.
- Omnibus editions: Collection formats, not separate novels.
Related Works and Where They Fit
Steamy Romance Three-Book Collection
- Placement: After all three novels.
- Status in reading order: Optional.
- Format: Omnibus.
- Notes: Use this only as a collection entry. It does not replace the individual novel list unless the page is for editions.
The Kiss Quotient Translations
- Placement: Format and language tracking only.
- Status in reading order: Not a separate work.
- Notes: Keep translation pages outside the main English publication order unless the site tracks international editions.
The Bride Test Translations
- Placement: Format and language tracking only.
- Status in reading order: Not a separate work.
- Notes: List only on a format-specific or translation-specific index.
Author Recommendations and Blurbs
- Placement: Do not include in the reading order.
- Status in reading order: Not part of the bibliography.
- Notes: Hoang has recommendation and praise material on publisher and author pages, but these do not create catalog entries.
Dependencies & Notes
- Publication order and series order are the same.
- The Kiss Quotient is the best starting point.
- The Bride Test should be placed second.
- The Heart Principle should be placed third.
- The books are connected romance novels, not one continuous cliffhanger chain.
- Each novel centers on a different couple.
- Reading in order gives the clearest character-world context.
- The Heart Principle has a heavier tone than the first two books and should not be described only as a light romantic comedy.
- No fourth primary Helen Hoang novel was identified on the checked author, publisher, or series bibliography pages as of this update.
- Jamie Jo Hoang is a separate author and should not be merged with Helen Hoang in author indexes.
FAQs
What is the first Helen Hoang book?
The Kiss Quotient is the first Helen Hoang novel and the first book in the Kiss Quotient series.
What Helen Hoang book should I start with?
Start with The Kiss Quotient.
What is the order of Helen Hoang’s books?
Read The Kiss Quotient, then The Bride Test, then The Heart Principle.
What is the order of The Kiss Quotient series?
The Kiss Quotient series order is The Kiss Quotient, The Bride Test, and The Heart Principle.
Do Helen Hoang’s books need to be read in order?
Reading in order is recommended. The books are connected companion romances rather than one continuous cliffhanger series.
Is The Bride Test a sequel to The Kiss Quotient?
Yes, it is the second listed book in the Kiss Quotient series. It follows a new central couple.
Is The Heart Principle the third Helen Hoang book?
Yes. The Heart Principle is listed as the third Kiss Quotient book and was published in 2021.
Are there any Helen Hoang novellas?
No separate Helen Hoang novella was identified in the checked primary series listings. Keep the master list limited to the three novels unless an official novella is confirmed.
Is Steamy Romance Three-Book Collection a new book?
No. It is an omnibus edition that collects the Kiss Quotient novels.
What is Helen Hoang’s newest book?
The Heart Principle is the newest primary Helen Hoang novel identified in the checked sources.
Is Helen Hoang the same author as Jamie Jo Hoang?
No. Helen Hoang and Jamie Jo Hoang are separate authors.
Change Log
- Last checked: June 17, 2026
- What changed: Rebuilt as a fuller single-author article with expanded reading paths, series checklist, collection notes, edition notes, dependencies, and FAQs.
- Most recent known release included: The Heart Principle (2021)
- Most recent known collection included: Steamy Romance Three-Book Collection (2022)
- Current bibliography status: Three primary Helen Hoang novels confirmed in the checked author, publisher, and series listings.