NOTE: Shipments are done via USPS.  Please be aware that there have been significant delays at USPS recently, and many shipments are taking longer than expected.  If you have any issues with shipments or receiving your order, please contact us via our contact page.  Thank you for your patience and understanding.

CREDIT/DEBIT CARD NOTE: If you’d like to pay by credit/debit card and you don’t have a Paypal account, please feel free to use the Paypal option and check out as a guest — no account needed.  You should see this option on the right hand side of the Paypal payment page.  If you have any questions about this please contact our sales department at sales (at) or via our contact page above.

Most orders for items in stock are shipped same day if orders are received via Paypal by 10 AM EST on business weekdays, otherwise they are shipped next day; Amazon orders are typically shipped the day after order is placed (24-48 hrs), due to longer Amazon processing times.  All orders are sent via USPS Priority unless otherwise noted, such as media mail discounted shipping.   USPS priority usually  takes 2-4 days to most places within the continental US.  Large orders or orders of low-stock items such as certain kits may take longer to process.  If you need an items sent via another service such as FedEx or UPS, or sent internationally, please contact our sales department by email or via the contact page above.  Thank you for your order!

Thank you. Your order has been received.

Please note that NSTA Coupon Discounted books will be shipped media mail, not 1st class/priority.  Thank you!

Thank you for ordering with Tumblehome Learning!

Please note that the use of coupons is restricted.  Coupons are for authorized use only.  Coupons intended for distributor/partners may not be shared or used for retail purchases and any such unauthorized orders will not be fulfilled.  All usage of the THL shop is monitored; misuse of this system shall be reported to authorities and prosecuted to the full extent of the law.