then why need money for to learn next lession ?

Hi D.M.Rezone Hossain Rabbi, Thanks for reaching out. Can you please be more specific? What plan did you subscribe to prior to completing the Business Intelligence (BI): Techniques lesson? Looking forward to your answer. Best, Martin

Hi Marwa! We are happy to provide part of our content for free but in general, our paid content is a lot richer and complete. Please visit the following page from our site for more information. Thank you! https://365datascience.com/pricing/ Kind regards, Martin