You can find the SKUs on each product's page on the Logic of English Webstore.
Under Product Details, click on the section for the variant you want to order — physical product, PDF, set, etc. — to see the SKU and other details about that variant.
If you are using our School Quote Builder, once you submit an official quote request you will receive a copy of the submission email that includes a link to your quote request. The final quote request has a consolidated list at the bottom with SKUs, quantities, titles, and prices.