Buy Book

Hardcopy

The hardcopy is available at Amazon, click here.

E-book

For the e-book version, I ask for a donation. You can donate  crypto or another form, email me your propsal. Please use emailaddress e-book@hubertknulst.nl

Thanks for your support.

Crypto details:

Bitcoin – bc1qmfdx7yml8nqdne4m82g6vr975zxm6aap5xzmzu

Bitcoin Cash – qzyf2mt77y0avunutzpy6yx9w5hlzf4nps3wnjud90

Ethereum – 0x74cdd225553F5736852511620Fda1122ff10e250