Seconding this. On a higher level also, what really helped things click for me was his "Domain Driven Design" slides... Slides: https://speakerdeck.com/swlasc

Seconding this. On a higher level also, what really helped things click for me was his "Domain Driven Design" slides... Slides: https://speakerdeck.com/swlaschin/domain-driven-design-with-the-f-number-type-system-f-number-unctional-londoners-2014 https://speakerdeck.com/swlaschin/domain-driven-design-with-... Video of talk: https://vimeo.com/97507575 https://vimeo.com/97507575