Reddit mentions of Sight Reading for the Classical Guitar, Level I-III: Daily Sight Reading Material with Emphasis on Interpretation, Phrasing, Form, and More

Try 'Sight Reading For Classical Guitar' by Robert Benedict -

Level I-III and

Level IV-V

Also, Trinity College's 'Sound At Sight' books are very useful for practice -

Grade Initial-3

Grade 4-8

I also find Julio Sagreras's First, Second and Third Lessons In The Guitar very useful for both sight reading and developing my right hand technique.

Don't try and speed up the process, it takes a long time and steady practice.

Get this book;

http://www.amazon.co.uk/Sight-Reading-Classical-Guitar-Level/dp/0769209742/ref=sr_1_fkmr1_1?ie=UTF8&qid=1375442256&sr=8-1-fkmr1&keywords=sight+read+classical+guitar

And then when you have finished that one, get this one;

http://www.amazon.co.uk/Sight-Reading-Classical-Guitar-Level/dp/0769212859/ref=sr_1_fkmr1_2?ie=UTF8&qid=1375442279&sr=8-2-fkmr1&keywords=sight+read+classical+guitar

And then you should feel confident to play most things.
After those books, I'd recommend folk and bluegrass sheet music as the timings are quite simple (mostly triplets or 16ths throughout).

Jazz and the like will be much harder to read but you'll get there IF you practice.

My personnal recommandations (which is what I work with currently):

• For sight reading this and that.
  
• Etudes: Sor and Cassini
  
• Methods : Pumping Nylon and Kitharologus

You're not going to get a lot of people in r/classicalGuitar that are going to answer this without some kind of recommendation that you just improve your regular score reading skills instead. Tab can be a great tool at times, but more often it seems to be used as crutch.

My advice is to start sight reading as much as you can whenever you find tab-free scores because it is skill that you can only develop with dedicated and focused practice. Whenever you go to the effort to transcribe a score to Tab, you are still leaning on a crutch because when you start playing, you aren't using the music, you're using your Tab instead and not actually getting any score reading practice in. In your mind, you are probably translating your scores to Tab instead of actually reading the score. Tab and score notation are similar in that respect. In fact, I suspect that if you just force yourself to give up tab you'll see an amazing and very rapid increase in your ability to process standard scores.

Here is a personal example: When I read Spanish I am not actually reading Spanish... I'm translating it into something I am familiar with. I still have to learn to transform my thought process into Spanish before I am truly reading Spanish. Once I stop communicating by saying buenos noches to mean "good afternoon/night" and I just start saying buenos noches when I mean "buenos noches", I am actually speaking Spanish. Until then, I am just translating words. That won't change until I immerse myself in Spanish without clinging to English as my crutch. The same thing applies to changing from Tab notation to score notation.

http://www.amazon.com/Sight-Reading-Classical-Guitar-Level/dp/0769209742/ref=sr_1_1?ie=UTF8&qid=1333574358&sr=8-1

I have this book and it is great practice in sight reading and you may want to check it out. It is nothing more than a bunch of short sight reading exercises. Teach yourself one or two of them a day without transcribing them to tab first and I am absolutely confident that your reading skills will improve noticeably.

If you are really insistent on using Tab though, classtab.org is decent.

This book has some decent stuff in it as well: http://www.amazon.com/Easy-Spanish-Guitar-Solos-Book/dp/1603780599/ref=sr_1_1?s=books&ie=UTF8&qid=1333575720&sr=1-1

David Oakes' book on Sight Reading for Guitar is a decent one for learning how to sight-read if you're a beginner:

https://www.amazon.com/Music-Reading-Guitar-Complete-Method/dp/0793581885/ref=sr_1_fkmr0_1?ie=UTF8&qid=1466625720&sr=8-1-fkmr0&keywords=David+Oates+sight+reading

If you get through that one, try out William Leavitt's Melodic Rhythms for Guitar. This one is really solid:

https://www.amazon.com/Melodic-Rhythms-Guitar-William-Leavitt/dp/0634013327/ref=sr_1_5?s=books&ie=UTF8&qid=1466625895&sr=1-5&keywords=William+Leavitt

I've not looked through this one, but if you're interested in combining classical guitar and sight reading, it might be worth a shot:

https://www.amazon.com/Sight-Reading-Classical-Guitar-Level/dp/0769209742/ref=pd_rhf_se_s_cp_15?ie=UTF8&dpID=514XaC6KshL&dpSrc=sims&preST=_SL500_SR103%2C135_&psc=1&refRID=0E43T3ND9D1TG4KDPZVE

Good luck!

I recommend reading basic exercises in higher positions. That's the best way I've found. That said - I do like these two sight reading books:

Sight Reading Classical Guitar Levels I-III


Sight Reading Classical Guitar Levels IV-V

They appear really basic but there is more to them than meets the eye as far as phrasing, musicality and rhythms go. I read the first volume all in higher positions for the challenge. The second volume has upper position playing and covers a lot of common classical guitar styles in short snippets. I have them both and they are both worth checking out.

The latest incarnation of the Royal Conservatory Guitar Series are published by Fredrick Harris. Look for the Bridges series in the guitar section. They are the graded repertoire books for those doing their RCM examinations (here in Canada). The books are great. I use them with my students regardless if i have them doing the exams. They are not specifically devised for learning to sight read, just good broad ranging repertiore arranged by difficulty. For sight reading, Robert Benedict's books are good. For technique and nail advice check out Scott Tennant's, Pumping Nylon... cheesy title... great book!

Is it Progressive Guitar Method Book 1 possibly? I haven't done much book-based learning, other than for my forays into classical method, so I can't comment on that book specifically. I can say that if you are interested in learning not only the fretboard but also standard notation, check out Sight Reading for the Classical Guitar, Level I-II. Going through the exercises will definitely help imprint in your mind the notes of the fretboard in various positions.

It'll be hard to develop by looking at complicated, long pieces. You need to practice the underlying structure. (Just like it's hard to get better at figure drawing just by learning how to draw shadows and texture or slowly tracing finished pieces.)

I've been using this series, and it's been going pretty well:
http://www.amazon.com/Sight-Reading-Classical-Guitar-Level/dp/0769209742

I'm working through this now. Take a couple pages a day and in no time your brain will automatically match sheet music notation to finger positions.