place the bookshelf in the corner by the red chair for a dedicated reading nook. against the wall that currently has the bookshelf, invest in a nice media console or credenza. put a tc or large artwork above it. in front of the console put the coffee table, followed by the sofa (facing the wall). behind the sofa put a console that can double as a bar or more seating for your dining room when entertain. then i'd put a large pouf or ottoman that can be used in between the reading nook and living room area.

tv*

also, the scale of furniture is always the key to rearranging your space. good luck!

it doesn't look like there's a tv involved, so that makes this a little easier. the difficulty for me is that it's hard to tell how long the sofa is, but here are two options. 1) put the sofa on that long wall that the bookshelf is now on, and move the bookshelf to the smaller wall segment right next to the windows. this will still allow you to see out the windows from the sofa if that was one of your goals. then you can float the chair(s) opposite the sofa leaving the space visually and physically open from the kitchen/dining room. 2) float the sofa parallel to the dining table with its back to the table. this is where knowing the length of the sofa comes in handy. if it fits and you can still comfortably walk by on the right side it could be nice. you can fill out the large wall with the bookshelf by placing one of the chairs next to it, under that print on the wall, with a floor lamp and maybe a side table. you could also move the bookshelf to the smaller wall by the windows, but then I'd want you to have larger or more art on the large wall.

Consider putting your dining table up against the windows you don't want to block. The Eames chair next to the table underneath the painting. Put the sofa where the table is now and the red chair kind of between it and the Eames chair - the red chair is easiest to move out of the way of your storage closet it looks like.

I have the Eames rocker and it is so light and easy to move it is the piece I would consider as the one to push around to get into the closet. Is there space to the right of the bathroom door as you look at it for the bookcase? The big table is so smart in a small space... it actually works as its own room. Great little place. It's delightful already. Never been a fan of sofa backs (just a quirk of mine)

I think once you move the bookshelf to the short wall as fcresenc suggests, you'll be mostly done. Maybe a nice long mobile hung from the ceiling for height? Maybe on the living room side of the mechanical closet...

Also, you might consider a darker rug to anchor things a bit more firmly.

simple:
- put the bookcase in the nook by the windows
- put the sofa on the bookcase wall, facing the dining room
- station the easy chairs facing the sofa, so you have room to move btw the sofa and the rest of the apartment and your line of sight extends through the space
- place the lamp in the darkest corner near the sofa
- add a side table

I agree w/ Lady J...
...but I gotta ask the question:

You live in a smallish 1br apartment and have a table that seats 6?
Why???

I'd get a smaller table with fewer chairs (or even a kitchen island where you could have more workspace as well as a place to eat on stools) and expand your living space.

'The Rules' say put the largest piece of furniture in the room against the longest unbroken wall.

Put your sofa against the back wall, and move the bookcase to the end, behind the red chair. Then move the rocker next to the red chair but at the other end of the window.

The space created will be just about square, but turned at an angle. A rug would be a excellent addition to help define the space.

The set up looks kind of like the one in this house tour. Maybe you could look at it and get some ideas. http://www.apartmenttherapy.com/chicago/house-tours/house-tour-andreas-greektown-loft-009467

Can you float the couch so that it faces the wall in the picture? That would automatically create more of a separated sitting area.

Also, I meant to add: how about changing the bookcase to a long, low horizontal case once you've floated the couch to face the wall? On the wall, you could center a painting over the horizontal bookcase or add a TV, if you want one there...

Those floors! :Q__

A possibility I think hasn't come up yet is putting the sofa on the dotted red line....

@ bepsf - maybe they like cooking for friends/family?

I think the first comment has the most potential. I have separated a same-room dining and living area with a couch and really appreciated the space separation. The pouf (or maybe a pair of poufs?) would adjoin the reading chair to the rest of the living room if you had guests, or could be a nice perch to sip coffee and look out the window on. Way to go, fcresenc.

i would tweak bepsf's suggestion to a large round dining table. seat as many people as you like, but add a circular table as an anchor to the angular apartment.

preferably something with a pedestal to free up floor space.

Lady J's idea was my instant thought as well. Only, if possible, grab another one of those red chairs so they can have a face off w/ the sofa. That always looks cool.

You might consider swapping your space so the table is over in the living room instead. I can't see the whole space, but I find if I move items around and "test" the space eventually... it starts to just fall into place.

@rahskir
I think the red chair is out-of-range ikea, so finding another may not be that easy....

You would really need to move things around to see what setup works best - swapping living and dining area, moving couch against long wall or facing it, etc. before you go out and purchase additional pieces. But it would be a great idea to incorporate the bookshelf into your space more (behind the red chair). It could hold decorative items, will warm up the space..then you could add a larger rug, patterned, and so on.

Thanks for all the wonderful comments everyone!

@fcresenc and everyone who echoed that layout suggestion. Our only concern with moving the bookshelf to the window is that our books will get damaged from the sun. We'll definitely try it though, as I think you're right, it probably makes most sense.

@Abstractionist I like the suggestion to change to a long, low, horizontal bookshelf. I think you're right - the tall bookshelf presents too many problems in the room. A horizontal bookshelf, paired with fcresenc's suggestion would really work well!

@erinorea Thank you so much for the link to that apartment tour! I love how they have their living room set it. It also makes me realize that I have to be less afraid of "empty space".

@bepsf We have a 6 seat table because being able to host dinner parties and family meals is important to us! After many years of teeny tiny apartments, the the ability to serve meals to our friends and family at a table instead of on their laps is a real luxury :)

You can put a chair in front of a bookcase. It's easy enough to move if you need to get anything from the bookcase and it creates a nice layered effect.