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There are a few great pieces of exposition by Dieudonné that I really like. The first two together form an introduction to (or survey of) Grothendieck's EGA. The second is more of a historical survey of the long road leading up to the theory of schemes. I am sure all of these are available online, but maybe not so easy to find.

  • Algebraic geometry ("The Maryland Lectures", in English), MR0150140
  • Fondements de la géométrie algébrique moderne (in French), MR0246883
  • The historical development of algebraic geometry (available here or here)