By algebraic inequalities I mean inequalities like Cauchy's inequality, the AM-GM inequality etc. I need it for the International Mathematics Olympiad (IMO), so I hope I can find some books that introduce inequalities on that level. While I can only find problems on websites like M.SE. or AoPS (most of which are almost unintelligible to me), I want a book that provides a detailed, reader-friendly approach to that subject. Any recommendations? Thanks in advance.