Students learning algebraic topology

Question

In the preface of their book "Homotopical topology", Anatoly Fomenko and Dimitry Fuchs say:"Still, one can say that, from the students’ point of view, algebraic topology can now be seen as a completed domain, and it is possible to study it from the beginning to the end."
I was wondering what do they mean by studying algebraic topology from the beginnig to the end?
I think answer to this question by people who have some experience in algebraic topology can help those who start learning the subject. Thanks in advance for answers and clarifications.