r/Korean

I’m an older, life-long language enthusiast. I want to study Korean as an absolute beginner, but I am only wanting to learn written and spoken comprehension and also how to communicate in writing. I am not interested in learning to speak the language. I asked AI how I could do this, and I got an answer that my first step should be to learn Hangul and should never use English transliterations from day one. Do you agree? If not, how would you structure study for this purpose? What are some of the best resources for learning Hangul?

I own a used bookshop and recently got in a load of Korean picture books. Since I don't live in a place with a large Korean population and I have extremely limited physical space in my shop, these books will live in a box for now (still accessible to customers - they are always welcome to look through any boxes).

Here's my question: I would like to put a sign on the box that says "Korean Children's Books" (or something to that effect) in Korean in addition to the English, but I refuse to use/don't trust AI or Google Translate. Could someone who is fluent in Korean please translate for me?

I am a korean beginner and learning korean. I have learnt hanguel characters, some vocab and some pronunciation too (batchim) but there is a confusion. When we know that (ㄹ) is pronounced as R or L like I'm really confused. in water, its Mul with a bit sound of r. but in many words it sometimes r sometimes l and its not understandable to me. Kindly help