Tips for improving players
1. Play less bullet/blitz it will not improve your chess, it's for showing your chess skills.
2. Play correspondence chess, and try thinking at least 10 min a day on the games.
3. I don't really know books for lower rated players, but the first chess books I read that I enjoyed were, Susan Polgar's Chess tactics for Champions, Best Lessons of a Chess Coach, Logical Chess move by move.
I believe books do improve your chess, if you use them well. (Not if they're rotting on your shelf, obviously.)
One book I recommend is Jon Edwards' 1111 mates in one. Once you have solved the problems, move on to Jon Edwards' 1111 mates in 2,3 and 4 moves. The title of that book is misleading, as the last section is actually mates in 4 or more moves, and gets much harder.
Still, even solving up to mates in 3 (which would be about 90% of the book) would significantly improve your pattern recognition and calculation. I recommend setting up the mate in 2/mate in 3 positions on an actual board, and solve them without touching the pieces, writing down your answers in an exercise book. Then when you check the answer, you move the pieces. (You might want to cover up the answer section with a paper to avoid seeing the next answer.)
I have done this and have improved. Of course, there are many ways to improve at chess. Bullet chess is not one of them in my opinion.
Tactics would be a good area to read about at your current strength. I would start with Dan Heisman's Back to Basics: Tactics. If you can learn some of the fundamental motifs it will help. Also, I'd second everyone here, forget blitz (my blitz rating is terrible even though I'm slowly becoming a competent player.
Possibly helpful:
Simple Attacking Plans by Fred Wilson (2012)
https://web.archive.org/web/20140708090402/http://www.chesscafe.com/text/review874.pdf
Logical Chess: Move by Move by Irving Chernev (1957)
https://web.archive.org/web/20140708104437/http://www.chesscafe.com/text/logichess.pdf
The Most Instructive Games of Chess Ever Played by Irving Chernev (1965)
https://chessbookreviews.wordpress.com/tag/most-instructive-games-of-chess-ever-played/
Winning Chess by Irving Chernev and Fred Reinfeld (1949)
https://web.archive.org/web/20140708093415/http://www.chesscafe.com/text/review919.pdf
Discovering Chess Openings by GM Johm Emms (2006)
https://web.archive.org/web/20140627114655/http://www.chesscafe.com/text/hansen91.pdf
Openings for Amateurs by Pete Tamburro (2014)
http://kenilworthian.blogspot.com/2014/05/review-of-pete-tamburros-openings-for.html
Chess Endgames for Kids by Karsten Müller (2015)
https://chessbookreviews.wordpress.com/tag/chess-endgames-for-kids/
A Guide to Chess Improvement by Dan Heisman (2010)
https://web.archive.org/web/20140708105628/http://www.chesscafe.com/text/review781.pdf
Winning Chess Tactics, Winning Chess Strategies, and Winning Chess Endings, all by Yasser Seiriwan.
Only one won't do. You need all 3!
Hey guys! So I had a quick question about what the best book is for a very low level player like myself... I've played a lot of chess, yet I do not seem to be improving WHATSOEVER. I'm currently hovering around 750 blitz rating, and I truly feel like I should be better with how much time I spend playing. I get so discouraged thinking about how bad I am and would really do anything to start seeing improvements. I know something needs to be done to get over this hump, so I thought a book may help a lot. What are some yall would recommend for a very low rated player who has a lot of time/experience? Thanks!