According to the most recent course description, ASTE 12034 covers the general theory of:
Students in this course will be assigned vehicles to repair to provide adequate practical application, in preparation for the ASE A1 Engine Repair student certification exam
This guide is organized primarily around resource type. That means, the tabs on the left begin by grouping material based on how it is presented -- in streaming video, in book form (physical and electronic), or in a trade publication (electronic form).
Different databases/resources may have slightly different rules about how you access the material, so be sure to read the "Introduction" section at the top of each page. If you have any trouble accessing these materials -- or if you have any other questions/suggestions -- feel free to contact me by phone or email.