Ben bu akşam biraz daha kitap okuyacağım.

That is true. Turkish often drops subject pronouns because the verb already shows the person.

Here, okuyacağım already means I will read, because the ending -ım marks I.

So:

• Bu akşam biraz daha kitap okuyacağım = perfectly natural
• Ben bu akşam biraz daha kitap okuyacağım = adds emphasis, contrast, or clarity

Using ben can feel like I will read tonight, maybe not someone else.

Bu akşam means this evening or tonight, depending on the context.

• bu = this
• akşam = evening

In natural English, it is often translated as tonight, even though the Turkish word is literally closer to evening.

A useful contrast:

• bu akşam = this evening / tonight
• bu gece = tonight, especially later at night

So bu akşam usually points to the evening part of the day rather than deep night.

Biraz daha means a little more or a bit more.

• biraz = a little
• daha = more / further / still

Together, they express a small additional amount.

In this sentence, it suggests something like:

• the speaker will read for a little longer
• or the speaker will do a little more reading than before
• or the speaker will continue reading somewhat

The exact nuance depends on context, but a bit more is the core idea.

In Turkish, a bare singular noun often has a general or non-specific meaning.

So kitap okuyacağım does not have to mean I will read one book in a strict sense. It can also mean:

• I will read a book
• I will read books
• I will do some reading

Turkish often uses the singular for this kind of general activity expression. This is very common.

For example:

• kitap okumak = to read books / to read / to do reading
• müzik dinlemek = to listen to music
• kahve içmek = to drink coffee

So kitap is singular because the sentence is talking about the activity of reading, not emphasizing multiple individual books.

This is about specificity.

In Turkish, the accusative ending often marks a specific, definite direct object.

• kitap okuyacağım = I will read a book / read books / do some reading
  The object is non-specific.
• kitabı okuyacağım = I will read the book
  This refers to a specific book, one that is known or identifiable.

So in your sentence, kitap has no accusative ending because it is not a specific book. It is just the general activity of reading books.

It breaks down like this:

• oku- = read
• -(y)acak = future tense suffix
• -ım = first person singular, meaning I

So the structure is basically:

oku + yacak + ım

which becomes okuyacağım.

The full meaning is I will read or I am going to read.

The y is a buffer consonant.

Turkish often inserts y when one suffix is added after a stem ending in a vowel and the next suffix also begins with a vowel.

Here:

• oku ends in a vowel
• the future suffix begins with a vowel sound

So Turkish inserts y to make pronunciation smoother:

• not okuacak
• but okuyacak

This is very common in Turkish grammar.

No. Turkish ğ is not pronounced like a normal hard g in English.

In okuyacağım, the ğ usually softens or lengthens the sound rather than being pronounced as a strong consonant.

Also, this ğ comes from a sound change:

• underlying form: okuyacak + ım
• before a vowel, the k softens to ğ
• result: okuyacağım

So ğ here is part of a normal spelling and sound pattern in Turkish.

A rough pronunciation guide would be something like:

o-ku-ya-ja-ım

with a very soft transition where the ğ appears.

Also note:

• Turkish c sounds like English j in jam

So -ca- is pronounced like ja.

It can do both.

The suffix -acak / -ecek is usually called the future tense, but in real use it can express:

• future action
• intention
• plan
• expectation
• prediction

So okuyacağım can mean both:

• I will read
• I am going to read

In this sentence, it most naturally sounds like a plan or intention for later today.

Yes. Turkish word order is flexible, although the verb usually stays at the end.

Your sentence is natural as it stands:

Ben bu akşam biraz daha kitap okuyacağım.

But you could also say:

• Bu akşam biraz daha kitap okuyacağım.
• Biraz daha kitap okuyacağım bu akşam.

These versions are all possible, but the emphasis changes.

For example:

• starting with bu akşam highlights the time
• starting with biraz daha highlights the amount
• including ben can add contrast or emphasis

The version you gave is a clear, neutral sentence with mild emphasis on ben.

Yes, absolutely.

That is often the most natural way to understand it.

Because kitap okumak is a very common expression for the activity of reading, English may translate it more naturally as:

• I’ll read a bit more tonight
• I’ll do a little more reading tonight

This is especially true because kitap here is non-specific. The sentence is focusing on the activity, not on one clearly identified book.

If the speaker meant one particular book, Turkish would more likely use something like kitabı instead.