There are two types of books, climbing books and hiking books.

The climbing book builds concepts step by step. It is like mountain climbing. If you do not understand the first half well, you can not understand the second half at all.

The hiking book expresses various concepts one after another. Even if you skip some contents, it does not harm you.

Takada Akinori says the purpose of hiking book is not reaching the top of the mountain but is enjoying the scenery. For example, in this chapter, I introduce several reading techniques side by side. By comparing multiple reading techniques, we can refine the understanding of reading. However, most readers do not have experiences with multiple reading techniques. So we need to look them roughly first. Enjoying the scenery is similar.

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