I’m not 100% sure what’s the difference and the pros and cons of these two. For headers of cause I use the Template Part. The Reusable Block I use for Query Items for example but I have no particular reason for these decision.
So I was wondering how and when you use the Template Part and Reusable Block.
Hi @Jonas,
We use Reusable blocks for any reusable page content that we or our clients need to drop into a page that can be edited in a single place and have those edits update all instances of the reusable block on any page it is used.
Examples: FAQ section, customer logos grid, newsletter sign up forms, etc.
We use Block Patterns for any reusable content templates that we or our clients can use as a starting point where each instance can have unique content.
Examples: Headed content, CTA box with action buttons, side-by-side text and image content, etc, etc.
We use Template Parts / fragments for any site content to be used to arrange pages and/or be selectively displayed on pages via the Cwicly Themer visibility conditions.
Examples: Headers, Footers, CTA sections, Banners, etc.
Hi @StrangeTech!
thanks a lot for taking the time to write this detailed response! Very helpful!
What do you mean with “Block Patterns”?
Glad it is helpful. 
We remove the standard block patterns as most of the time they are not suitable, especially for a Cwicly site and we add curated ones specific to the requirements of each project/client.
Thanks! Wasn’t aware of this feature. Will take a closer look at this!
With the exciting new components features being previewed next Wednesday, the answer to the question “Reusable Block or Block Pattern?” may soon become “Component!”.