This appears to be being re-posted because the book is now available on Amazon:

https://www.amazon.com/dp/1792644833

The text used to only be available via a PDF. Highly recommend if you're learning about algorithms, might buy a copy myself just to support Jeff (and add my own notes into the book).

Algorithms [1] by Robert Sedgewick is particularly well written.

Also, this one [2] is quite good and concise. I believe better suited for someone who is not unfamiliar with classic algorithms (like you).

[1] http://algs4.cs.princeton.edu/home/

[2] http://www.amazon.com/Algorithms-Sanjoy-Dasgupta/dp/00735234...

As an older self-taught engineer who went through interviews last year this is great advice. Other books I found particularly useful were:

Algorithms by Dasgupta, Papadimitriou and Vazirani:

http://www.amazon.com/Algorithms-Sanjoy-Dasgupta/dp/00735234...

And Elements of Programming Interviews by Aziz, Lee and Prakash:

http://www.amazon.com/Elements-Programming-Interviews-Inside...

Whoops, seems I posted the mobile link, here's the desktop site link: http://www.amazon.com/Algorithms-Sanjoy-Dasgupta/dp/00735234...

And here's the uk one: http://www.amazon.co.uk/Algorithms-Sanjoy-Dasgupta/dp/007352...

Just bought this on Amazon, looks great but I still prefer dead trees for tech books. Awesome that they've released it for free online though, very cool!

Amazon Link (no affiliate): http://www.amazon.com/gp/aw/d/0073523402/ref=mp_s_a_2?pi=SL7...

I had the pleasure of taking the class based around this book from Christos Papadimitriou while at UC Berkeley. It is indeed a concise and excellent book. If you see it in person you'll be surprised how short it is compared to most textbooks. I must confess, though, that some of the exercises can be absolutely maddening.

Dead tree link for those interested: http://www.amazon.com/Algorithms-Sanjoy-Dasgupta/dp/00735234...