# join 3 sequences

**URL:** <https://help.galaxyproject.org/t/join-3-sequences/6918>\
**Category:** usegalaxy.org support\
**Tags:** collections\
**Created:** [October 25, 2021, 12:47am UTC](https://help.galaxyproject.org/t/join-3-sequences/6918 "2021-10-25T00:47:24Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Thiely](https://avatars.discourse-cdn.com/v4/letter/t/e79b87/32.png) [@Thiely](https://help.galaxyproject.org/u/Thiely)\
**Post date:** [October 25, 2021, 12:47am UTC](https://help.galaxyproject.org/t/join-3-sequences/6918/1 "2021-10-25T00:47:25Z")

</div>

Hi, I have 3 iterations of a library, I need to merge them. How to make?

---

<div class="post-metadata">

**Author:** ![jennaj](https://sea2.discourse-cdn.com/flex020/user_avatar/help.galaxyproject.org/jennaj/32/27_2.png) [@jennaj](https://help.galaxyproject.org/u/jennaj)\
**Post date:** [October 26, 2021, 8:13pm UTC](https://help.galaxyproject.org/t/join-3-sequences/6918/2 "2021-10-26T20:13:24Z")

</div>

Hi @Thiely

Is the goal to process all of the samples together? If yes, using dataset collections would be a good idea.

GTN Tutorials: [Search Tutorials](https://training.galaxyproject.org/training-material/search?query=collection)

If you are trying to do something else, please provide more details.

Thanks!