I'm looking for a good, well-written and explained guide on reading and comparing execution plans in SQL Server. This is for more my own edification as well as for sharing with others.
If you want to add your own summary here that would be welcome, though I expect the topic is large enough that links to pre-written articles will be required. The more the merrier.
After much searching, I found this question as well:
However, that only has a single answer and it points to 181 page pdf file. While I will go through that, I'm looking for more of a guide; not a reference manual.