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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.