Complex sentence: Two of the most popular presentations were by Mark Sweeney, founder of AimPoint Technologies, who presented Accelerated Skill Acquisition in Putting and by Henry Abbott, senior writer at ESPN, who presented Bad Decisions in Sports Skew Macho.
Split into simpler sentences: Two of the most popular were by Mark Sweeney, founder of AimPoint Technologies, who presented the topic Accelerated Skill Acquisition in Putting and by Henry Abbott. Senior writer at ESPN, who presented Bad Decisions in Sports Skew Macho.