Elina Kallas and Vidyangi Patil are co-authors of The Solution Book.
Vidyangi (Vida) is a serial author and coach on creativity and innovation strategy, also Medium's top blogger in innovation, currently advises/consults with silicon valley and emerging market startups and non-profits.
101 tools as a combination of tried and tested techniques for ideation and problem-solving journeys reversing expensive startup, innovation and venture failures.