Haskell Programming by Christopher Allen
The PDF covers the following topics related to Haskell Programming : All You Need is Lambda, Hello, Haskell!, Strings, Basic datatypes, Types, Typeclasses, More functional patterns, Recursion, Lists, Folding lists, Algebraic datatypes, Signaling adversity, Testing, Monoid, Semigroup, Functor, Applicative, Monad, Applying structure, Foldable, Traversable, Reader, State, Parser combinators, Composing types, Monad transformers, Non-strictness, Basic libraries, IO.
Author(s): Christopher Allen, Julie Moronuki
1076 Pages 
Introduction to Programming in Haskell
This book covers topics on basic types, compilers vs. interpreters, functions, pattern matching, list manipulation, polymorphism, sorting algorithms, user-defined datatypes, abstract datatypes, tree traversals, input or output, and memoization, introduction to programming concepts, algorithms, and data structures. They also touch on arrays, priority queues, heaps, and dynamic programming.
Author(s): Madhavan Mukund
128 Pages
A Gentle Introduction to Haskell 98 Yale
The PDF covers the following topics related to Haskell Programming : Introduction, Values, Types, and Other Goodies, Functions, Case Expressions and Pattern Matching, Type Classes and Overloading, Types, Again, Input/Output, Standard Haskell Classes, About Monads, Numbers, Modules, Arrays.
Author(s): Paul Hudak, John Peterson, Joseph Fasel, Department of Computer Science, Yale University, University of California
64 Pages
