At NDC Oslo, F# in Finance and other recent events I've given versions of the talk "Succeeding with Functional-First Programming in Finance". I've also given adaptions called "Succeeding with Functional-First Programming in Industry".   The slides are now available on Slide Share. The talk is based partly on material from http://fsharp.org/testimonials and other sources, I'd be happy to know of more material like this. Some explanation: the talk does not say that functional-first programming is right "ever[...]