The basics of inequalities: AM-GM, homogenization, Cauchy/Holder.

Summary

The basics of olympiad inequalities. It is beginner friendly and you should take it if you want to dive into the sea of inequalities. Alternatively, you can take Ineq Standard which is a combination of Ineq Basic and Ineq Func.

Notable Problems

These problems have elementary solutions. You can kill them by using AM-GM, Cauchy, Muirhead, Holder, etc.