*Valid March 31, 2025 - May 11, 2025 at Canadian stores and at indigo.ca, while quantities last, with $30.00 or more pre-tax purchase of eligible product(s), after discounts and plum points redemptions. Minimum purchase amount excludes gift cards, plum+ memberships, Love of Reading products/donations, and shipping costs. Selection may vary between stores and online.
From Local to Global Optimization/en-ca/from-local-to-global-optimization/381AC63E-9E47-4790-B0C2-28EB98CF00AF.html381AC63E-9E47-4790-B0C2-28EB98CF00AF