soldering tutorial and notes - mzandrew/idlab-documentation GitHub Wiki
There are three soldering how-to comics/manga:
The first one is on through-hole soldering. And the follow-up is an extension to that, on surface-mount soldering.
And the final comic was penned by the idlab's own Robin Caplett and focuses on different aspects of surface-mount soldering.
A one-page diagram showing a cross-section of soldering (through-hole and surface-mount)