Here's The DW beginner book you’ve been searching for!
https://towardsdatascience.com/the-ultimate-guide-to-data-warehousing-b02fcbc41a1c
https://towardsdatascience.com/the-ultimate-guide-to-data-warehousing-b02fcbc41a1c
https://towardsdatascience.com/the-ultimate-guide-to-data-warehousing-b02fcbc41a1c
