Flavors of Prototype by Marty Cagan

16 Prototyping Tools & How Each Can Be Used by Joe Salowitz

A Prototype is Worth a Thousand Lines of Code by Tyner Blain

Six Myths About Prototyping by Jeff Lash

7 Tips For Better Prototypes by John Cutler

4 ways prototyping untangles your product requirements by Heather Krebsbach

Tools for Prototyping

Interface Sketch
Free, downloadable templates for paper prototyping.



Great for creating mock-ups easy and fast.


Intuitive prototyping tool that brings your prototypes to life with clickable flows.


Prototyping tool that is slightly more advanced than Marvel.



Create a fully functional web prototype even if you can’t code.



The Best Books about Prototyping

Prototyping for Product Managers by UXPin
In this completely free and downloadable e-book written by a product manager with more than 10 years of experience, you’ll learn how to minimize risk and simplify requirements by providing a step-by-step guide that also helps you prioritize user stories for prototyping and provides you with hands-on exercises to teach you prototyping with examples.

Fake It Make It: How to Make an App Prototype in 3 Hours by Amir Khella
Is it possible to create an interactive prototype for your app idea without using a design tool, without knowing how to write code, and without hiring designers or programmers to help you with it? If you know how to use Apple Keynote or Microsoft PowerPoint to create presentations, you will learn how to use the same tools to prototype and validate your app ideas in 3 hours or less. Perfect for a product manager who wants to explain product requirements or specifications without writing long documents.