Springer: Yellow Sale: 30th Anniversary Sale - Up to 50% Off English Language Books & eBooks in Mathematics and Statistics * Limited time offer. * Offer is only valid for private individuals.  * No further discounts or voucher cards can be applied to the already reduced prices. * Discount does not apply to reference works, handbooks, encyclopedias, journal subscriptions or bulk orders.  * Offer is only valid for selected English-language Springer, Palgrave & Apress books and eBooks and can only be redeemed on website. * Titles subject to fixed book prices, unpublished titles and titles not currently available on the website are excluded from the promotion.  * For full Terms & Conditions, please visit the Springer’s website.