Top 20 NuGet expression Packages

IsSharp is a guard clause library for C# that provides clean and fluent code with human readable exception messages using expression trees.
SharePoint CAML query builder - Build CAML queries using Lambda Expression with simple POCOs.
Interfaces and base implementation for the Specification pattern.
This library wraps the common request properties for a search/get request from any HTTP client
Helper methods for lambda expressions
Trivial Ast
With this library you can evaluate math expressions fast and easily. Expression will be compiled into native code, also you can dynamicly change variables.
Extensions for POCO entities generated by EntityFramework.
Generic Repository for EntityFramework.
Generic Service for EntityFramework and Query Mappings.
NJection.LambdaConverter is a .NET library for converting delegates resolved from methods/constructors to expression trees.
Utils for .NET applications + Serializers for object to JSON and XML + Object Binder for NameValueCollection to Object + Safe converter for any object type to another object type + Regular Expression patterns for many string format + Extension methods for some actions + Hash utils for crypto + File...
A parser that uses the Reverse Polish Notation and the Shunting-Yard algorithm to transform a simple mathematical expression into a computed numerical value. Useful for simple calculator projects.
Dynamic Creation of Expression from String, calculation symbolically derivative, partial differentiation, simplifying math expressions
IdeaStudio Core : helpers, method extensions, converters, ...
DataBag provides an easy way of resolving string expressions based on registered variables. For more details see Project Site.
C# Wrapper that helps calculate mathematical expressions that include a variable(x).
Micosoft Expression Blend SDK for 4.5
A convention object to object or DataReader to object mapper in .NET.
A lib for easy compile method to delegate.