Hart Publishing  offers readers of the blog a 20% discount on their titles.

To receive the discount please quote reference 'JDB' when placing your order. If you are ordering online then please quote the reference in the special instructions field. Please note that the discount will not show up on your order confirmation but will be applied when your order is processed.


Intersentia offers readers of the blog a 20% discount on its books.

To receive this discount, please order via mail ( and quote the discount code 'JDB- ITS' .


Springer offers readers of the blog a 20% discount on books in the following series:

To receive the discount, use discount code ‘xJDa88MbTRrcTe9’.

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