diff --git a/code_thingies/dbtlearn/seeds/seed_full_moon_dates.csv b/code_thingies/dbtlearn/seeds/seed_full_moon_dates.csv
new file mode 100644
index 0000000..c9d373e
--- /dev/null
+++ b/code_thingies/dbtlearn/seeds/seed_full_moon_dates.csv
@@ -0,0 +1,273 @@
+full_moon_date
+2009-01-11
+2009-02-09
+2009-03-11
+2009-04-09
+2009-05-09
+2009-06-07
+2009-07-07
+2009-08-06
+2009-09-04
+2009-10-04
+2009-11-02
+2009-12-02
+2009-12-31
+2010-01-30
+2010-02-28
+2010-03-30
+2010-04-28
+2010-05-28
+2010-06-26
+2010-07-26
+2010-08-24
+2010-09-23
+2010-10-23
+2010-11-21
+2010-12-21
+2011-01-19
+2011-02-18
+2011-03-19
+2011-04-18
+2011-05-17
+2011-06-15
+2011-07-15
+2011-08-13
+2011-09-12
+2011-10-12
+2011-11-10
+2011-12-10
+2012-01-09
+2012-02-07
+2012-03-08
+2012-04-06
+2012-05-06
+2012-06-04
+2012-07-03
+2012-08-02
+2012-08-31
+2012-09-30
+2012-10-29
+2012-11-28
+2012-12-28
+2013-01-27
+2013-02-25
+2013-03-27
+2013-04-25
+2013-05-25
+2013-06-23
+2013-07-22
+2013-08-21
+2013-09-19
+2013-10-19
+2013-11-17
+2013-12-17
+2014-01-16
+2014-02-15
+2014-03-16
+2014-04-15
+2014-05-14
+2014-06-13
+2014-07-12
+2014-08-10
+2014-09-09
+2014-10-08
+2014-11-06
+2014-12-06
+2015-01-05
+2015-02-04
+2015-03-05
+2015-04-04
+2015-05-04
+2015-06-02
+2015-07-02
+2015-07-31
+2015-08-29
+2015-09-28
+2015-10-27
+2015-11-25
+2015-12-25
+2016-01-24
+2016-02-22
+2016-03-23
+2016-04-22
+2016-05-21
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+2016-08-18
+2016-09-16
+2016-10-16
+2016-11-14
+2016-12-14
+2017-01-12
+2017-02-11
+2017-03-12
+2017-04-11
+2017-05-10
+2017-06-09
+2017-07-09
+2017-08-07
+2017-09-06
+2017-10-05
+2017-11-04
+2017-12-03
+2018-01-02
+2018-01-31
+2018-03-02
+2018-03-31
+2018-04-30
+2018-05-29
+2018-06-28
+2018-07-27
+2018-08-26
+2018-09-25
+2018-10-24
+2018-11-23
+2018-12-22
+2019-01-21
+2019-02-19
+2019-03-21
+2019-04-19
+2019-05-18
+2019-06-17
+2019-07-16
+2019-08-15
+2019-09-14
+2019-10-13
+2019-11-12
+2019-12-12
+2020-01-10
+2020-02-09
+2020-03-09
+2020-04-08
+2020-05-07
+2020-06-05
+2020-07-05
+2020-08-03
+2020-09-02
+2020-10-01
+2020-10-31
+2020-11-30
+2020-12-30
+2021-01-28
+2021-02-27
+2021-03-28
+2021-04-27
+2021-05-26
+2021-06-24
+2021-07-24
+2021-08-22
+2021-09-21
+2021-10-20
+2021-11-19
+2021-12-19
+2022-01-18
+2022-02-16
+2022-03-18
+2022-04-16
+2022-05-16
+2022-06-14
+2022-07-13
+2022-08-12
+2022-09-10
+2022-10-09
+2022-11-08
+2022-12-08
+2023-01-07
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+2023-08-31
+2023-09-29
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+2023-11-27
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+2024-01-25
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+2024-03-25
+2024-04-24
+2024-05-23
+2024-06-22
+2024-07-21
+2024-08-19
+2024-09-18
+2024-10-17
+2024-11-15
+2024-12-15
+2025-01-13
+2025-02-12
+2025-03-14
+2025-04-13
+2025-05-12
+2025-06-11
+2025-07-10
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+2026-01-03
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+2026-08-28
+2026-09-26
+2026-10-26
+2026-11-24
+2026-12-24
+2027-01-22
+2027-02-21
+2027-03-22
+2027-04-21
+2027-05-20
+2027-06-19
+2027-07-18
+2027-08-17
+2027-09-16
+2027-10-15
+2027-11-14
+2027-12-13
+2028-01-12
+2028-02-10
+2028-03-11
+2028-04-09
+2028-05-08
+2028-06-07
+2028-07-06
+2028-08-05
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+2028-10-03
+2028-11-02
+2028-12-02
+2028-12-31
+2029-01-30
+2029-02-28
+2029-03-30
+2029-04-28
+2029-05-27
+2029-06-26
+2029-07-25
+2029-08-24
+2029-09-22
+2029-10-22
+2029-11-21
+2029-12-20
+2030-01-19
+2030-02-18
+2030-03-19
+2030-04-18
+2030-05-17
+2030-06-15
+2030-07-15
+2030-08-13
+2030-09-11
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diff --git a/notes/sections1-7.md b/notes/sections1-7.md
index 4e25c8a..22bc677 100644
--- a/notes/sections1-7.md
+++ b/notes/sections1-7.md
@@ -105,4 +105,12 @@ dbt makes sense nowadays because the modern data stack makes transformations wit
 
 - `dbt_project.yml`: header of the project, with stuff like versioning, the default profile for the project, the paths to different folders, etc.
 
-This is a pic of the data flow we are going to build: ![img.png](../images/dataflow_overview.png)
\ No newline at end of file
+This is a pic of the data flow we are going to build: ![img.png](../images/dataflow_overview.png)
+
+## Sources and seeds
+
+Seeds are local files that you upload to a DWH from dbt. You place them as CSVs in the `seeds` folder.
+
+
+Sources are an abstraction layer on top of the input tables.
+