Conclusion

In conclusion, according to the instruction.

Recent Posts / Recent Comments and Archives widgets could let people move around more freely and could break the flow.You may want to remove them. You still need a link to the “index” – use a text widget for that link.You could use Pages for the chapters instead of posts. The names of those pages is optional of course.

Concepts: Using Text Widget, How to write links

What did I learn?
An understanding of the difference between a Post and a Page.