tosyokan made no miti wo osiete kudasai.

It is read:

Toshokan made no michi o oshiete kudasai.

A few notes:

• 図書館 = としょかん (toshokan)
• 道 = みち (michi)
• を is written o in romanization, although the kana is を
• 教えてください = oshiete kudasai

So the full pronunciation is:

としょかん まで の みち を おしえて ください。

まで means up to, until, or as far as.

In this sentence, 図書館まで means:

• to the library
• more literally, as far as the library

So the speaker is asking about the route that goes up to the library.

This is a very common question because まで is a particle, and learners do not always expect it to be followed by の.

Here, 図書館までの道 means:

• the road/path to the library
• literally, the road of up-to-the-library

The の links 図書館まで to 道 and turns the phrase before it into something that modifies 道.

Compare:

• 図書館まで = to the library
• 図書館までの道 = the الطريق/path to the library

So の is needed because 道 is the noun being described.

Yes, 道 literally means road, street, way, or path.

In this sentence, it does not necessarily mean one physical road only. It often means:

• the route
• the way
• how to get there

So 図書館までの道を教えてください is a natural way to say:

• Please tell me the way to the library.
• Please tell me how to get to the library.

It is not limited to a single road in a strict physical sense.

を marks the direct object of the verb.

The verb here is 教えてください from 教える, which means to teach, to tell, or to inform.

So in this sentence:

• 道を教えてください
• literally: Please tell me the way

The thing being told/explained is 道, so it takes を.

教えてください is a polite request meaning:

• please tell me
• please show me
• please explain

It comes from:

• dictionary form: 教える = to teach / to tell
• 教えて = the -te form
• ください = please when attached to a -te form

So:

• 教えてください = please tell me

This is polite and very common in everyday speech.

Yes, it is polite.

The politeness comes mainly from ください.

So 図書館までの道を教えてください。 is a normal polite way to ask a stranger for directions.

It is not extremely formal, but it is appropriate and respectful in everyday situations.

If you want to sound even softer, you could say:

• 図書館までの道を教えてくださいませんか。
• Could you please tell me the way to the library?

But the original sentence is already perfectly polite.

Yes, you often can.

• 図書館までの道 = the way up to the library
• 図書館への道 = the way toward/to the library

In many everyday situations, they are very similar.

A rough nuance difference:

• まで emphasizes the endpoint: as far as the library
• へ emphasizes direction: toward the library

Both can work, but 図書館までの道を教えてください sounds very natural when asking for directions.

Yes. That means:

• Where is the library?

This is also natural, but it is a slightly different question.

Compare:

• 図書館はどこですか。 = asking for the location
• 図書館までの道を教えてください。 = asking for the route/directions

If you want someone to explain how to get there, the original sentence is more specific.

The spaces are just for learners.

Normally, Japanese is written without spaces:

図書館までの道を教えてください。

Textbooks and learning materials often add spaces to make the grammar easier to see, but in real Japanese writing, those spaces usually are not there.

Yes. A very common alternative is 行き方.

• 図書館までの行き方を教えてください。
• Please tell me how to get to the library.

Difference in nuance:

• 道 = the way / road / route
• 行き方 = how to go / how to get there

Both are natural, but 行き方 can sound a little more like directions in the practical sense.

No. In Japanese, 教える is used much more broadly than English teach.

It can mean:

• to teach
• to tell
• to inform
• to show someone information

So in this sentence, 教えてください does not mean please teach me in a classroom sense. It simply means:

• please tell me
• please show me

That is why it is very common in requests for directions, phone numbers, names, and other information.