Jeff Gothelf's "Lean UX "approach to interaction design is tailor-made for today's web-driven world. The 152-page book -- available in an US$19.99 ebook version or a $24.99 print version -- teaches ...

A/B split test significance calculator 4. How we combined lean SaaS and lean UX When we created our company we had a notion of what we wanted to achieve and some assumptions on how to achieve it.