Jeff Erickson, professor at the University of Illinois, has published an excellent book on algorithms. He will be self-publishing this content as a paper book, but the online copy will remain available.
“I never hear anybody mentioning him but Jeff Erickson’s ‘Algorithms’ textbook  has some of the most lucid explanations I’ve come across. CLRS is often times impenetrable and for the times I didn’t like its explanation of something I turned to Jeff Erickson’s book and it hasn’t failed me yet. I’d urge anybody trying to solidify algorithms and data structures to take a look at it.” — stuxnet79
Grokking Algorithms : An Illustrated Guide for Programmers and Other Curious People
By Bhargava, Aditya Y.
Book – 2016
Algorithms in A Nutshell
By Pollice, Gary
Book – 2016
Learn You A Haskell for Great Good!
A Beginner’s Guide
Book – 2011
An Introduction to the Analysis of Algorithms, By Sedgewick, Robert – c2013
This is a math textbook intended for an upper-level university course. Hardcover, 550 pages.
The Art of Computer Programming (V.4A) 3rd ed, Donald Knuth, Addison-Wesley, 2010
This is one of the classics in the programming world. Knuth has updated it! Hardcover, 850 pages.
Algorithms 4th ed, Robert Sedgewick, Addison-Wesley, ( 2011)
This textbook is well written. There is a small amount of example code in Java or C. Hardcover, 950 pages.
Real World Haskell, Bryan O’Sullivan, O’Reilly, 2008
Haskell is an advanced purely functional programming language. Read the book online here. Sorry, it is not yet at the OPL.
Programming Scala : tackle multicore complexity on the JVM / Venkat Subramaniam, Pragmatic Bookshelf, 2008
Programmers will see the Scala language for parallel processing as a path to the future. As always, this Pragmatic book is very practical. Read it online here. 200 pages.
Introduction to Algorithms, Third Edition / Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest, Clifford Stein, MIT Press, 2009
Here is a textbook for undergrad or graduate CS courses. One of the authors is the R in RSA. Hard cover, 1200 pages.