Physical books vs electronic books?

Physical. I prefer the old fashioned way. Nothing beats the feel of an actual solid book in your hands. Plus they look so nice on a shelf and it's easier to find any page or scene you want because there's no loading or menus involved.

Electronic books may be cheaper, smaller and are more portable friendly, but it's just not the same experience to me.

Apples and tomatoes. Both are fruits. They have different nutrients and I prefer tomato slices to apple slices on my hamburger.

Whatever is available and if the text contains time- or genealogical tables.

I used to prefer physical books. Years ago I got a Kindle for my birthday. And for two or three years I never used it. Then one day I found some free e-books that Amazon was giving away. They were part of a series and the first couple of books were free - the publisher wanted you to like the series and buy the rest. After that I kept discovering other free ebooks - either books I could borrow from my library or Amazon. and also some free books offered from publishes as promotions.

Slowly but surely as I got used to the Kindle and getting e-books I got to prefer them. Now when I visit the public library's catalog - if I have a choice I get the e-book.

I rarely buy books anymore - just get them from the library. and my bookshelves are full so there is no advantage to how they look on a shelf. And I find it easier to find something in an e-book. Just use the search function. and the Kindle does make it super easy to make bookmarks.

I like the kindle cause it's easier to hold; its lighter.
you can read it in bed without a nightlight.*
I can read it without my reading glasses by just increasing the size of the font.
I can turn up or down the brightness. *
I've found that turning the pages black and the type white is easier on my eyes. *
Library books can be borrowed without visiting the library. and they get "returned" the same way.
On vacations, I can easily take 2 or 10 books with me. Library books are never overdue. they just evaporate. And my kindle has both wifi and 3G, so i can buy or borrow books from almost anywhere. even the beach.
At meals, I can lie it down flat and prop it up with my phone and eat while reading. A real book needs a hand or two or some kind of book holder.
At the gym, it can sit on the tray of the treadmill.
When sitting in an easy chair it can be balanced on a knee. Or set on the chair's arm.

* a feature not available on all e-readers.

There is nothing like a page you can fold the corner over to mark your spot in reading the book.

neither. audio books. saves your eyes and you can do other stuff at the same time

I personally prefer physical books. There's just something about holding the paper and reading the words and imagining things in your own way. I also have a hard time looking at electronics for just a long period of time.

Personally I prefer physical books because I love to hold them, smell the paper (if older ones) and they can become collectable own the track unlike e books.

Both have advantages and there is no reason you can't use all forms the a books.

The best thing about deadtree books is you own them and can do what ever you want with them like sell them or loan them out.
When you have light you can read a deadtree book.

eBooks can allow an indie author to sell you the licence to read his book for much less than a deadtree book and make a bigger profit.
Kindle ebooks can sync with some of the audible dot com books which I have rarely used but have often purchased because the set of kindle and audible book bought together often costs less than and audible dot com credit.
You can usually read an book across several devices including your smartphone which most people always have on them (of course the battery is dead from using Facebooks, Twitter, and especially Pokemon Go)

A good share of books I get all three especially if it the kindle book and audible book have major discounts if you already purchased the deadtree book

Electronic books.

I like and use both. I love the library and visit often. And we have a lot of books at home I really read.
Traveling I use ebooks. I have an old kindle I like reading on.

It depends. The advantage of ebooks is that they don't take up physical space. You can also enlarge the font and increase contrast, which is good for those with vision issues. However, you can't give away or sell used ones, which is a disadvantage.

Once you're old enough to know how to write a complete sentence, I'll be glad to answer your question. But at the moment, you're apparently a 3-year-old who can't even ask a comprehensible question. So fcuk off.