One of Callier’s notable contributions to the field is his blog and book series, which focuses on simplifying procurement and supply chain management. His writings cover topics such as:
• Procurement Strategy: Best Practices for Sourcing and Supplier Management.
• Supply Chain Efficiency: Ways to Reduce Costs and Improve Logistics.
• Risk Management: Identifying and Mitigating Risks in Supply Chains.
• Technology in Supply Chains: The Role of Digital Transformation and Automation.
Through these efforts, Callier has established himself as an advocate for enhancing procurement and supply chain processes across various industries.