College of the Siskiyous


The Campus Gift and Bookstore sells required textbooks for courses at College of the Siskiyous. The Bookstore is also your on-campus destination for school supplies, snacks, gifts, and College of the Siskiyous clothing and souvenirs.

Order Your BooksOrder Your eBooksOrder Your Clothing

Textbook Buyback

COS Bookstore

The Campus Gift and Bookstore will be holding a Textbook Buyback Event May 14-15 and 18-22 in the Weed Campus Bookstore and the Yreka Main Office.

You can sell your textbooks back at your own convenience using this link:

Campus Marketplace

The online Marketplace is provided as an online bulletin board platform. Customers can post items for sale under their own terms and pricing or purchase items such as textbooks. Pricing, sales, and interactions take place between the buyer and the seller only. An account must be created to participate within the Marketplace. College of the Siskiyous Bookstore is not involved in the process of buying or selling any products within the Marketplace. The Marketplace is simply a bulletin board for customer-to-customer interactions. College of the Siskiyous will not be responsible for any issues or transactions within the Marketplace.

You can access the marketplace using this link:

Bookstore Spring Hours

Weed Campus:
Monday - Friday 8:00 am to 5:00 pm

Yreka Campus:
Monday - Friday 8:30 am to 4:30 pm (closed for lunch 12:30 - 1:30 pm)

Current Booklists

Return Policy

The Campus Gift and Bookstore accepts returns of textbooks in exchange for a refund within 7 days of the date that the textbook was initially purchased. The final deadlines for textbook returns are:

September 6 - Fall 2019 Semester
January 10 - Winter 2020 Semester
February 10 - Spring 2020 Semester
June 4 - Summer 2020 Semester

A receipt is required to process a return for a textbook. New books must be in new condition with no marking, writing, or highlighting with all pages intact. Books purchased in shrink wrap must be returned as such. If paying by check, you must have proof the check has cleared the bank in order to receive a refund.

Clothing may be exchanged for a store credit if the garment is still in new condition within 2 weeks of the date of purchase.

College Buys Software Purchases

Students can now purchase Microsoft Office Professional Plus software for $39.99 - available exclusively through CollegeBuys for California Community College students. This price, negotiated by CollegeBuys on behalf of our system, is the lowest offered anywhere for our students.

CollegeBuys, powered by the Foundation for California Community Colleges, offers discounts of up to 85 percent on a wide-range of educational products—from industry-leading software and technology to high quality office and classroom furniture. These offers are made available to eligible buyers, including California Community College students, faculty, staff, educational institutions, and public agencies. By tapping into the enormous aggregate buying power of the largest higher educational system in the nation, CollegeBuys saves millions of dollars each year for colleges and students.

Contact the Bookstore

Location: Physical Science 1
Phone: (530) 938-5236
Fax: (530) 938-5868