344 volumes of materia medica for use with Vision. You can quickly search for words across this entire library of original source books and/or browse the texts as written. This is an essential collection of classics that you will use constantly.
Concordant Reference contains information on 1209 remedies. Building on the original source information each remedy has been updated significantly with modern knowledge about families and botany. This is an indispensable reference work you need in Vision
Prisma (original edition) for Vision v2 from Frans Vermeulen. Contains a huge amount of information on 500 remedies including the leading symptoms, zoology, folklore, physics, distribution, mythology and any relation to doctrine of signatures.