Not sure which issue, but I read it in Marvel's Star Wars Vol. 1 Luke encounters Vader, Luke has no idea what he's doing and Vader mocks him. They both have no idea who the other is.
Yeah, so companies will periodically put out a printed edition of a comic series that includes several individual issues. This is usually called a trade paperback (TPB). That print version is available in comic shops or other bookstores but are also available on Amazon. Earlier collections are often available at libraries too.
These same collections are usually available in digital form, and usually cheaper that way (especially when on sale) so it's just a question of whether you prefer a physical copy of a comic series to own on your bookshelf or a digital version you can read anywhere.
As an example, here's the paperback version of Volume 1 of the main Star Wars series, which collects issues 1-6. Buying it this way is much cheaper than buying all the individual issues - you just have to wait a few months longer for the collections to be released.
Does that answer your question?
These are from the USA Amazon store, so I don't know if it too expensive to order from there...
Anyways here is when they release:
Star Wars Vol. 1 https://www.amazon.com/dp/0785192131/ref=cm_sw_r_awd_6TIqvb0TRV2DY
September 15, 2015
Star Wars: Princess Leia https://www.amazon.com/dp/0785193170/ref=cm_sw_r_awd_iWIqvb1NYAACK
September 15, 2015
Star Wars: Darth Vader Vol. 1 https://www.amazon.com/dp/0785192557/ref=cm_sw_r_awd_QWIqvb0C9Y821
October 20, 2015
Star Wars: Kanan: The Last Padawan Vol. 1 https://www.amazon.com/dp/0785193669/ref=cm_sw_r_awd_qXIqvb0G36NXS
November 3, 2015
Here is the first paperback of thirteen on the Australian Amazon website.
https://www.amazon.com.au/Star-Wars-Skywalker-Strikes-Tpb/dp/0785192131
There are a bunch of canon series. If you're a fan of the OT (and OT characters) its probably easiest to start with the main Star Wars book Marvel launched in 2015. This is the start of the current canon in terms of comics. The Amazon link below is easy because its the collected edition of the first story arc.
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Here's a timeline of all the canon comics so far. Personally, I think it works best to read these as their collected editions. This list is of the individual issues (comparable to individual TV episodes). Find a comic series or character that seems interesting and look into buying the collected books.
I would recommend "Star Wars: Darth Vader: Dark Lord of the Sith Vol. 1: Imperial Machine", "Star Wars Vol. 1: Skywalker Strikes", and "Star Wars: Darth Vader Vol. 1"
Links to all 3 on Amazon https://www.amazon.com/Star-Wars-Vol-Skywalker-Strikes/dp/0785192131/ref=sr_1_1?s=books&ie=UTF8&qid=1518569676&sr=1-1&keywords=star+wars+skywalker+strikes
https://www.amazon.com/Star-Wars-Vol-Skywalker-Strikes/dp/0785192131/ref=sr_1_1?ie=UTF8&qid=1482379184&sr=8-1&keywords=star+wars+marvel
https://www.amazon.com/Star-Wars-Darth-Vader-Marvel/dp/0785192557/ref=pd_sim_14_3?_encoding=UTF8&psc=1&refRID=M7GTMXTAQDB42KVFQSN0
https://www.amazon.com/Star-Wars-Chewbacca-Marvel/dp/0785193200/ref=pd_sim_14_16?_encoding=UTF8&psc=1&refRID=R2SBW5GTWQSHCDKKCATA
These should make a good start. You really can't go wrong with any of the new Marvel series though. They're all excellent.
Perhaps someone in the UK would be able to give better options; but aside from Amazon, Forbidden Planet and Mega City Comics seem to sell them.
Just an FYI, TP stands for Trade Paperback which will be a collection of a few issues. For instance, the Star Wars TP 01 has issues #1-6 of Star Wars.
Not really too expensive.. I just ordered the first TPB of the StarWars 2015 series for $11 on Amazon.. http://www.amazon.com/Star-Wars-Vol-Skywalker-Strikes/dp/0785192131/
For those that are interested, the new comics coming out from Marvel are fantastic! I suggest starting with this trade paperback: Star Wars 2015 #1(http://www.amazon.com/Star-Wars-Vol-Skywalker-Strikes/dp/0785192131/)
There are TPB volumes for sure, but it is too soon before they do omnibuses.
Edit here is when the first TPB volumes release:
Star Wars Vol. 1 https://www.amazon.com/dp/0785192131/ref=cm_sw_r_awd_6TIqvb0TRV2DY
September 15, 2015
Star Wars: Princess Leia https://www.amazon.com/dp/0785193170/ref=cm_sw_r_awd_iWIqvb1NYAACK
September 15, 2015
Star Wars: Darth Vader Vol. 1 https://www.amazon.com/dp/0785192557/ref=cm_sw_r_awd_QWIqvb0C9Y821
October 20, 2015
Star Wars: Kanan: The Last Padawan Vol. 1 https://www.amazon.com/dp/0785193669/ref=cm_sw_r_awd_qXIqvb0G36NXS
November 3, 2015