ISO 27001 study material

I don’t have the official ISO 27001 requirements with all the clauses and annex A. I also don’t have the best practices ISO 27002.
Since I not only plan to perform internal audits (maybe later external audits) but also consult clients in the implementation of ISO27001, I want to learn more about the details in ISO27001 and ISO27002.
1 - Are there any online implementation courses you can recommend ?

Answer: You can learn about the details of ISO 27001 and the implementation steps in our ISO 27001 Foundations Course https://advisera.com/training/iso-27001-foundations-course/, and if you want more thorough training on the implementation, then I would recommend the ISO 27001 Lead Implementer Course - unfortunately, we do not offer such a course.

This article will provide you further explanation about ISO 27001 implementer course:
- What does ISO 27001 Lead Implementer training look like? https://advisera.com/27001academy/blog/2016/11/28/what-does-iso-27001-lead-implementer-training-look-like

This material will also help you regarding ISO 27001 study material:
- Book Secure & Simple: A Small-Business Guide to Implementing ISO 27001 On Your Own https://advisera.com/books/secure-and-simple-a-small-business-guide-to-implementing-iso-27001-on-your-own/

2 - Where should I buy the official requirements of ISO27001 and ISO27002 ? Here: www.iso.org ?

Regarding the acquisition of the standards, the ISO site is exactly where you have to go. Here are the links for the standards:
- ISO 27001 https://www.iso.org/standard/54534.html
- ISO 27002 https://www.iso.org/standard/54533.html

Since you are considering offer consultant services, I suggest you take a look at our consultants toolkits at this link: https://advisera.com/27001academy/consultants/

These materials can help you develop policies, procedures, and plans, as well manage project tasks and interested parties.

These material will provide you further explanation about becoming a consultant:
- How to become an ISO 27001 / BS 25999-2 consultant [free webinar on demand] https://advisera.com/27001academy/webinar/become-iso-27001-bs-25999-2-consultant-free-webinar/
- How to become an ISO 27001 / ISO 22301 consultant https://advisera.com/27001academy/blog/2014/07/21/how-to-become-an-iso-27001-iso-22301-consultant/