As you may note from the description above, many
innovations have been combined into an encompassing guide
for learning organic chemistry. However, in doing so, one
of the most readily noted differences is that the curved
arrow usage has been changed. While pre-bonds make the
reactions understandable simply with logic to all students
in Part A, that usage is non-standard. Accordingly, the
pre-bonds are not used. I have not data to assess the
degree to which pre-bonds may help or hinder a students
understanding of chemical reactions.
In all other aspects of the book, they are identical. The
same multi-tiered examples are used in four parts. Part A
lacks the curved arrows, Part B lacks every other
intermediate, and Part C, is similar to textbook problems.