H. Peter Alesso Books in Order

H. Peter Alesso has written 23 books, published between 2013 and 2026. The first book is Midshipman Henry Gallant in Space (2013) and the newest is Discord (2026). Publication order is the reading order below.

Books
23
Published
2013–2026
Pages on record
268 in 1 of 23 books

H. Peter Alesso spent twenty years in research at Lawrence Livermore National Laboratory, where he led a group of computer scientists and engineers. Alesso's fiction centres on the Henry Gallant Saga, whose titles trace ranks from Midshipman Henry Gallant in Space (2013) to Commodore Henry Gallant (2020). The Keeper Saga, Jamie Hawkins Saga, Fallout of War and Jaeger's War add to 23 listed books. Discord (2026) is the newest.

Source: Open Library

How many H. Peter Alesso books are there?

H. Peter Alesso has 23 books, released between 2013 and 2026. They include 6 series and 5 titles listed outside any series.

H. Peter Alesso Books in Publication Order

The table lists all 23 H. Peter Alesso books in the order they were published, 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 November 2026.

  1. 1
    Midshipman Henry Gallant in SpaceHenry Gallant Saga #12013 · confirmed 1/4
    2013–
  2. 2
    Lieutenant Henry GallantHenry Gallant Saga #22014 · confirmed 1/4
    2014–
  3. 3
    Henry Gallant and the WarriorHenry Gallant Saga #32015 · confirmed 1/4
    2015–
  4. 4
    Captain HawkinsJamie Hawkins Saga #12016 · confirmed 1/4
    2016–
  5. 5
    Commander GallantHenry Gallant Saga #42016 · confirmed 1/4
    2016–
  6. 6
    Dark Genius2017 · 268 pages · confirmed 1/4
    2017268
  7. 7
    Youngblood2019 · confirmed 1/4
    2019–
  8. 8
    Captain Henry GallantHenry Gallant Saga #52019 · confirmed 1/4
    2019–
  9. 9
    Commodore Henry GallantHenry Gallant Saga #62020 · confirmed 1/4
    2020–
  10. 10
    Henry Gallant and the Great ShipHenry Gallant Saga #72020 · confirmed 1/4
    2020–
  11. 11
    Rear Admiral Henry GallantHenry Gallant Saga #82021 · confirmed 1/4
    2021–
  12. 12
    Midshipman Henry Gallant at the AcademyHenry Gallant Saga #92022 · confirmed 1/4
    2022–
  13. 13
    All Androids Lie2023 · confirmed 1/4
    2023–
  14. 14
    Keeper of the AlgorithmKeeper Saga #12023 · confirmed 1/4
    2023–
  15. 15
    They Were ExpendableJaeger’s War #12023 · confirmed 1/4
    2023–
  16. 16
    By Any Other NameBy Any Other Name #12024 · confirmed 1/4
    2024–
  17. 17
    By Any Other MeansBy Any Other Name #22024 · confirmed 1/4
    2024–
  18. 18
    Keeper of the SecretKeeper Saga #22024 · confirmed 1/4
    2024–
  19. 19
    Ukraine: Year OneFallout of War #12025 · confirmed 1/4
    2025–
  20. 20
    Ukraine: Year TwoFallout of War #22025 · confirmed 1/4
    2025–
  21. 21
    All That AI Jazz2025 · confirmed 1/4
    2025–
  22. 22
    Ukraine Year ThreeFallout of War #32026 · confirmed 1/4
    2026–
  23. 23
    Discord2026 · confirmed 1/4
    2026–

H. Peter Alesso 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.

Henry Gallant Saga in order

9 books
  1. 1. Midshipman Henry Gallant in Space
  2. 2. Lieutenant Henry Gallant
  3. 3. Henry Gallant and the Warrior
  4. 4. Commander Gallant
  5. 5. Captain Henry Gallant
  6. 6. Commodore Henry Gallant
  7. 7. Henry Gallant and the Great Ship
  8. 8. Rear Admiral Henry Gallant
  9. 9. Midshipman Henry Gallant at the Academy

Fallout of War in order

3 books
  1. 1. Ukraine: Year One
  2. 2. Ukraine: Year Two
  3. 3. Ukraine Year Three

Keeper Saga in order

2 books
  1. 1. Keeper of the Algorithm
  2. 2. Keeper of the Secret

By Any Other Name in order

2 books
  1. 1. By Any Other Name
  2. 2. By Any Other Means

Jamie Hawkins Saga in order

1 book
  1. 1. Captain Hawkins

Jaeger’s War in order

1 book
  1. 1. They Were Expendable

Standalone books

5 books

5 H. Peter Alesso titles here are not listed as part of any series.

Do you have to read H. Peter Alesso books in order?

You only need to read H. Peter Alesso books in order within each series: the books listed here span 6 separate series, and each series has its own publication order.

Where to start with H. Peter Alesso

Start with Midshipman Henry Gallant in Space (2013), the earliest published title.

What is the newest H. Peter Alesso book?

Discord (2026) is the newest H. Peter Alesso book released so far.

Is there a new H. Peter Alesso book coming?

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

H. Peter Alesso at a glance

Still publishing
H. Peter Alesso published a book as recently as 2026.
Release pace
H. Peter Alesso books have appeared more than one a year on average.
Length
268 pages across the 1 of 23 books with a recorded length, a median of 268 pages each.
Busiest decade
Most H. Peter Alesso books, 15 of 23, were published in the 2020s.

When H. Peter Alesso books were published

Publication distribution by decade, showing when H. Peter Alesso titles appeared. 2020s was the most productive decade with 15 titles.

2010s
8
2020s
15

23 books total across 2 decades. Decade reflects the year each title was first catalogued.