Learn sales and marketing as a software developer

I can recommend @arvidkahl’s Zero to sold (https://thebootstrappedfounder.com/zero-to-sold/)

Our startup is basically aggregating the best (free) resources on digital marketing and indexing them for you. You will find a ton of recommendations there. You could start with the strategy parts and then decide from there what to focus on next.
https://app.zage.life

Edit: Ah, and it's currently free to use.

These aren't specifically sales and marketing related, but they deal with ways to validate your ideas (or starting without an idea and discovering them based on demand) before even getting started.

Start From Zero
https://www.startfromzero.com/
(also has a lot of info on copywriting, and free resources at https://www.startfromzero.com/yes)

Sales Safari
https://shop.stackingthebricks.com/sales-safari-101

The Mom Test
http://momtestbook.com/

Hi daemonunderbed, so I’m in the opposite boat. I’ve been in sales and business dev my whole life and spent the last 20 years playing with tech and software development as a hobby.

I took some early courses on product management from productschool.com which really helped me bridge the gap and connect some dots between sales and development.

I also read “How to write copy that sells” by Ray Edwards which helped me turn me sales pitches into emails and content that helped me increase my customer base.

I’ve read a lot of sales books over the years but mostly I’ve found the books that help you become a better storyteller and be more relatable have been the most beneficial for me.

Made to Stick , Explosive Growth and Zero to One to name a few .