Get an exclusive 30% discount with Peters when you order Scientists Making a Difference and Engineers Making a Difference using voucher code WOE30 at peters.co.uk/makingadifference.
Schools will receive 30% off the RRP on selected titles published by What on Earth! books when using voucher code WOE30 before 31 December 2026. Offer valid on specified titles only; not to be used in conjunction with any other promotion.
