What are the good logo design learning resources (books, sites)? How can I learn logo design more in depth? What are some good instructional resources for learning logo design?

This question is not about:

• basic principles.
• books or sites like "1000 best logos of year" or other picture collections, which do not teach you anything.

What are some good instructional resources for learning logo design (books, sites)? How can I learn logo design more in depth?

This question is not about:

• basic principles.
• books or sites like "1000 best logos of year" or other picture collections, etc

What are the good logo design learning resources (books, sites)? How can I learn logo design more in depth.

This question is not about:

• basic principles.
• books or sites like "1000 best logos of year" or other picture collections, which do not teach you anything.

What are the good logo design learning resources (books, sites)? How can I learn logo design more in depth? What are some good instructional resources for learning logo design?

This question is not about:

• basic principles.
• books or sites like "1000 best logos of year" or other picture collections, which do not teach you anything.