Signature Boston
CEM Learning Program
CEM Learning Program

CEM Faculty

Líbia Lender Macedo, CEM

Líbia Lender Macedo, CEM
Director of DicaEvento’s website/ Conceito and Soluções Cia/ University Teacher

Líbia Macedo, CEM, is brazilian, fluent in Portuguese, Spanish and English, and has mixed her career between the corporate and… more

Jim Letchworth, CEM

James Letchworth, CEM
Senior Sales Manager, GES

Jim Letchworth, CEM, started his career in the trade show industry in 1991 working for a family owned general services… more

Sam Lippman , Lippman Connects

Edward Liu, PBM, CEM
Managing Director, Conference & Exhibition Management Services Pte Ltd

Mr. Edward Liu is the Group Managing Director of Conference & Exhibition Management Services (CEMS), which operates in Singapore, China,… more

Al Lomas, CMP, CMM, CFE, CEM

Al Lomas, CMP, CMM, CVE, CEM
Consultant, Certified Consulting Services

Al retired from the San Antonio Convention & Sports Entertainment Department with extensive experience in assembly venues utilized for exhibition,… more

Jair Lopez Montes, CEM

Jair Lopez Montes, CEM , Cancun International Convention Center

Jair has been active in the Exhibitions and Conventions industry for 12 years. He has had the opportunity to work… more

Troy Love CTA, CMP, CEM

Troy Love, CTA, CMP, CEM
Senior Sales Manager, Visit San Antonio

Troy Love, CTA, CMP, CASE, CEM has 25 years of experience in the hospitality industry, including nine years at the… more

Ryan Lovell, CEM-AP
Environmental Producer, Freeman

Ryan’s career spans three decades with a background in exhibit design & fabrication, sales, creative design, and project management. From… more

Bob McLean, CPA

Bob McLean, CPA, CAE, CEM
Interim President, Promotional Products Association International

Robert (Bob) McLean is PPAI’s Interim President. He was hired in June 2008 as Chief Financial Officer and is responsible… more

Catherine Mellett, CEM

Catherine Mellett, CEM

In 2020, Catherine Mellett founded JerseyCat Productions, LLC, a company dedicated in understanding the complexities and strategic challenges facing the… more