kono hon ni ha kati ga arimasu.

It is pronounced kono hon ni wa kachi ga arimasu.

In kana, that is この ほん には かち が あります.

In normal Japanese writing, it would usually appear without spaces: この本には価値があります。

The spaces are just a learning aid. Japanese is normally written without spaces, so the natural written form is この本には価値があります。

Textbooks and beginner materials often add spaces to make the structure easier to see.

この means this, but it must come before a noun.

So:

• この本 = this book
• これ = this one

That is why この本 is correct, not これ本.

Here, に marks the thing that has something, or the place/domain where something exists.

A very common Japanese pattern is:

A に B がある

which literally means something like B exists in/for A, but often translates naturally as A has B.

So:

• この本には価値がある
• literally: As for/in this book, value exists
• naturally: This book has value or There is value in this book

には is に + は.

The は adds a topic feeling: as for this book. It can also add a slight contrast depending on context.

So この本には価値があります can feel like:

• As for this book, it has value
• There is value in this book
• possibly even This book, at least, has value

Without は, この本に価値があります is possible in some contexts, but には is very common when the speaker is making this book the topic.

Because 価値 is the thing that is said to exist.

With ある / あります, the thing that exists is usually marked by が.

So in:

この本には価値があります

the structure is:

• この本には = as for this book / in this book
• 価値が = value
• あります = exists / there is

So 価値がある literally means value exists, and more naturally to have value or to be valuable.

Yes. あります is the polite form of ある, which means to exist or there is for non-living things.

Japanese often uses an existence verb where English uses have.

So instead of saying this book has value with a special verb for have, Japanese says something closer to:

In this book, value exists.

That is why あります is used here.

Because 価値 is not a living thing.

In Japanese:

• ある / あります is used for non-living things
• いる / います is used for living things like people and animals

Since 価値 means value, it is non-living, so あります is correct.

Yes. 価値がある is a very common expression meaning:

• to have value
• to be valuable
• to be worthwhile
• sometimes to be worth it

The exact English translation depends on context.

For example:

• この本は価値がある = This book is valuable
• 読む価値がある = It is worth reading

So 価値がある is a very useful pattern to learn as a chunk.

You absolutely can. この本は価値がある is natural Japanese.

The difference is mainly nuance:

• この本は価値がある = This book is valuable
• この本には価値がある = There is value in this book / This book has value

The version with には can sound a little more like the speaker is pointing out value in the book, and it may carry a slight contrast in some contexts, such as this book does have value.

So both are possible, but they are not exactly identical in feeling.

The plain form is:

この本には価値がある。

The polite form is:

この本には価値があります。

The meaning is the same. The difference is politeness:

• ある = plain
• あります = polite

Usually, it sounds like the speaker’s judgment or evaluation, unless the context makes it sound more objective.

In other words, この本には価値があります often means something like:

• I think this book has value
• This book is worthwhile
• This book is not meaningless

So even though the sentence itself is grammatically neutral, the idea of value often involves opinion or assessment.