“Very useful!!! Thanks, Ray Sheen and GoSkills group!!”

Sivaraman Hariharan

“Useful information and knowledge for all industries to learn ”

HO CHENG JIE

“Ray was great!”

JR Ladson

“Really concise, practical and informative course; recommended either for new certifications or for refreshing.”

Jose Luis Sosa

“I really enjoyed this course and I will highly recommended to any person. I will continue to study the attachments from each lesson until I can feel more confident to pass the IASSC Yellow Belt exam.”

ITURIEL RODRIGUEZ

“This is a great training program to study and use with other books on LSS yellow belt. I feel pretty confident that with a few more hours of study I can pass the IASSC yellow belt exam.”

Glenn Steinke

“I just finished taking the GoSkills Yellow Belt course and passed my IASSC exam on the first try with a 92%! This course is by the far the best organized and presented I've seen, at a better price.”

Karl Baedeker

“It was remarkable. ”

Shalini Parameswaran

“Excellent course. The course content is clear, and the cases are easy to understand. As a supply chain engineer, through the guidance of Mr. Ray Sheen, I have sorted out my knowledge about Lean six sigma project management. Thank you very much.”

Alain WUENQI

“Excellent course. I really enjoyed the material, very easy to follow!”

Juan Camilo Fabra Prieto

“I have absolutely loved this course. The lessons are small enough that I can easily get at least one or two completed every day while being packed with valuable information. I highly recommend the courses Go Skills provides, I'll definitely be taking more!”

Cyndl

“Very well presented”

Ben

“Excellent course, easy watch and learn on my own time!”

Christian Grundman

“Love this training! Lessons are presented by Ray Sheen who speaks clearly and professionally which makes this material easy to learn throughout the entire course. Following completion of the course, did 100% on final exam. Hoping to pass the IASSC exam. More to follow. Highly recommend taking this training through Go-Skills.”

Graciano

“The value of these courses in GoSkills are worth much more than they have charged me for. Best source for instructed self training online!”

Nicolo Alexis Duran

“Love the bite sized modules! Easy to squeeze one or two in when I have time.”

Brian

“Very thorough and informative. Appreciate the ability to take courses at your own pace.”

Steven D Lindsay

“Fantastic! I feel I have appropriately prepared for the certification through this program. Thank you!”

Andrew

“EXCELLENT COURSE.”

Amanda Daroga-Marajh

“Very interesting!!”

Dara