Welcome to Sigma Marketplace!

Frequently Asked Questions

General Website Questions

Why was the website redesigned?
To serve our members and customers with an easy-to-navigate website and to keep up with the ever-changing pace of technology.

Did the website address change?
While you can still access the site at www.nursingknowledge.org, the website address has been changed to www.sigmamarketplace.org

Is the new website secure?
Sigma Marketplace uses industry standard SSL encryption to secure all communication.

Is Sigma Marketplace part of Sigma?
Yes, Sigma is a wholly-owned, 501(c)3 not-for-profit subsidiary of Sigma Theta Tau International Honor Society of Nursing. We are committed to providing evidence-based knowledge solutions developed for nurses by nurses. Sigma Marketplace offers free and fee-based content developed by leading organizations around the globe.

Will I need to change my bookmark for the Sigma Marketplace website?
While your old bookmark will still get you to our site, we recommend updating it to our new web address: www.sigmamarketplace.org.

What is “phishing”?
“Phishing” is a scam designed to steal your personal information. If you receive an email that looks like it is from us asking you for your personal information, do not respond. We will never request your password, credit card information or other personal information through email.

What is a “Tag”?
A tag is a type of metadata that helps describe an item and allows it to be found again by browsing and searching.

Product Questions

Can I still purchase books and merchandise online? 
Yes, you can still place orders online.

I purchased a continuing nursing education (CNE) course that I haven’t completed yet. Is it still available? If so, how do I find it? 
Yes, it is still available. You should have received an email with instructions. If you did not or no longer have the email, follow these simple steps:

  1. Log into www.sigmmarketplace.org.
  2. Sign in using the email address you registered with on the Sigma Marketplace site with as your username. Your password is the member number. Please retain this information for future use.
  3. After logging in, if your profile is not complete, you’ll be asked to update necessary information. If your profile is complete, you will land on My Profile page.
  4. On My Profile page, select Continuing Education from the list of options on the left side of the page, you’ll be directed to your course list. You will no longer need to sign in again to obtain your online education courses!

The 365 day time limit from date of purchase to complete your course still applies.

I purchased an e-book. Will it still be available for me to read?
Yes, it is still available. You should have received an email with instructions. If you did not or no longer have the email, follow these simple steps:

  1. Log into www.sigmamarketplace.org.
  2. Sign in using the email address you registered with on the Sigma Marketplace site with as your username. Your password is the member number. Please retain this information for future use.
  3. After logging in, if your profile is not complete, you’ll be asked to update necessary information. If your profile is complete, you will land on My Profile page.
  4. On My Profile page, select My Downloadable Products from the list of options on the left side of the page, you’ll be directed to your ebook(s) that you have previously purchased.

I didn’t receive an email about my continuing education (or ebook) course. What happened?

Your Internet Service Provider (ISP) or email client may be using filters to block email and this may be affecting the receipt of email from Sigma Marketplace. If you believe this is happening, please consult the help section of your email program, or contact your ISP directly to see how to relax or remove the settings that filter or block email. This will ensure that correspondence from Sigma Marketplace will be accepted.

Shipping, Tracking, and Return/Exchange Questions

What are your shipping rates?

Shipping rates will vary based on your destination zip code calculated during the checkout process.

Can I track my package?

Yes, please log into the Sigma Marketplace website and navigate to My Profile. You will be able to see the tracking number when it becomes available.

How do I return or exchange a purchase?

Exchanges can only be done for a different size of the same item. For a refund, you must contact our customer service department WITHIN 14 DAYS business days upon receipt of your item. Contact customer service at customerservice@sigmamarketplace.org or the toll-free number 888.654.4968. For more details, see our Return Policy

I never received my order. 

Please contact customer service at customerservice@sigmamarketplace.org or the toll free number, 888.654.4968.

How do I contact customer service for a return or exchange?
Contact customer service at customerservice@sigmamarketplace.org or the toll free number, 888.654.4968. For more details, go to the Return Policy on the Sigma Marketplace website at www.sigmamarketplace.org.

User Questions

How do I get a discount?
If you are a member of Sigma you will receive a 10% discount on books and continuing education. If you are a registered Sigma Marketplace user and have opted in to email promotions, you will periodically receive promotions through email communication.

What is the member discount?

All Sigma members receive a 10% discount on books and continuing education.

I’m ordering books for my class. Is there a discount for a bulk purchase?
Yes, we offer an institutional discount of 20% when the order is placed direct with a Sigma Marketplace representative. Email solutions@sigmamrketplace.org or call 888.654.4968.

If I have questions, how do I contact a Sigma Marketplace representative?
Mail to:solutions@sigmamarketplace.org or call 888.654.4968.

How do I contact customer service for a return or exchange?
Contact customer service at customerservice@sigmamarketplace.org or the toll free number, 888.654.4968. For more details, go to the Return Policy on the Sigma Marketplace website at www.sigmamarketplace.org.