If you’re wanting to get really serious, there are certification classes. For example, the “j standard” classes are pretty detailed. https://www.protoexpress.c

If you’re wanting to get really serious, there are certification classes. For example, the “j standard” classes are pretty detailed. https://www.protoexpress.com/blog/ipc-j-std-001-standard-soldering-requirements/ https://www.protoexpress.com/blog/ipc-j-std-001-standard-sol... There are some open source documents that can help you understand the difference between good and not-so-good work. Eg https://nepp.nasa.gov/docuploads/06AA01BA https://nepp.nasa.gov/docuploads/06AA01BA