Hello I am wonderinf if you guys know about a good introductiry book on real analysis where they use examples. I have found some books online, but they seem to not show with examples what we can do. I have read to Spivak calculus book is a good introduction, but I think it was too basic. I need it to have basic set theory, basic measure theory, introduction to lebesque integration, and convergence of series. Are there any books that got this, and got illustrations, and examples? What do you reccomend?