I'm interested in books or other resources that can help teach computer science fundamentals and theory for people (me...) who have a strong development background but no formal education.
Since so many CS professors make their course materials available for free, you should take advantage of that and piggyback off of multiple sources. I often search for "[Concept] lecture notes", choose one of the links (based on reputability, amount of math, etc.), and check that the other sources say the same thing. You'd be surprised the extent which an independent explanation can fill in the gaps of your understanding.<p>CS theory is fairly modular, so there's no need to stick to a single set of course notes or textbook for different topics -- just find whoever does it best for a given topic.<p>Also do lots of problems.
[my standard unpopular answer]<p>CS is hard for everyone. There are no easy parts. Even for Knuth who has been writing <i>The Art of Computer Programming</i> for almost sixty years. It was started when everybody was self taught. It is still for self-teaching. Even for people with degrees. Even if that degree is a PhD.<p>Don't get me wrong. I'm not saying "don't use anything else." But <i>TAoCP</i> is the backbone of everything else. It's all the messy details and the messy details matter a big part of the time. It is good to be fearful of the messy details. It is bad to be afraid of them.<p>Good luck.
Have you checked out <a href="https://teachyourselfcs.com" rel="nofollow">https://teachyourselfcs.com</a><p>My personal belief if that there really are no rules to how you go about learning a given subject. If reading isn't your preferred method of learning, find an alternative source, on the same subject, in your medium of choice.
Here are some results when this question was asked last time: <a href="https://hn.algolia.com/?q=%22computer+science+fundamentals%22" rel="nofollow">https://hn.algolia.com/?q=%22computer+science+fundamentals%2...</a>. Start there and if you still can't find what you need then make your question more focused. I also searched for "computer science" "books" and got even more results: <a href="https://hn.algolia.com/?dateRange=all&page=0&prefix=false&query=%22computer%20science%22%20%22books%22&sort=byPopularity&type=story" rel="nofollow">https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...</a>.
This question is asked on HN all the time, every week it seems. Here's one search that brings up hundreds of answers from the last year alone.<p><a href="https://hn.algolia.com/?dateRange=all&page=0&prefix=true&query=resources%20learn%20CS&sort=byDate&type=story" rel="nofollow">https://hn.algolia.com/?dateRange=all&page=0&prefix=true&que...</a>
the imposters handbook<p>DON'T HAVE A CS DEGREE AND FEEL LIKE YOU SHOULD?
Hey I don't have one either and I always managed to get the job done anyway... then again...<p><a href="https://bigmachine.io/products/the-imposters-handbook/" rel="nofollow">https://bigmachine.io/products/the-imposters-handbook/</a>
Try an undergrad complexity theory course <a href="https://www.youtube.com/channel/UCWnu2XymDtORV--qG2uG5eQ/playlists" rel="nofollow">https://www.youtube.com/channel/UCWnu2XymDtORV--qG2uG5eQ/pla...</a>