Free and well written:
https://www.chess.com/blog/webmaster/free-chess-mentor-courses
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 John 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
Just a few pointers you can get from most coaches and books for beginners:
I'm not an expert or master by any means, just getting back to Chess in fact. However, these lessons were the ones I try to remember, and it very much got me past frustrating days at the board.
Number 1 is the big one. Try to go an entire game without saying "Damn, I never saw that!" You won't believe how much you improve.
Anyone who can give me advice,give me links or something to better my game play especially openings,I am around 1250 elo started 3 years back and I am 19.HELP PLEASE!!!!!
thank you