A Few Questions

Ok. I love seeing all these junk journals and I AM OBSESSED Any and all answers are welcome! Thank you in advance!! So here are a few questions I have:

What base journal do you use? Like composition book? Blank hardcover books from B&N?

What kind of glue do you use?

I think this would be great for my kiddo, how would I preserve leaves for the journals?

Gosh I hope these are all the questions I have.. I'll add to this post if I have more