Reference posters/slides for the organic synthesis reactions required to be known in the organic chemistry topics of AS and A level chemistry (can be applicable to other curricula also). Can be used as a set of posters, printed as a reference booklet for students, presented as slides, and/or be made available digitally as a study aid. Includes alkanes, alkenes, halogenoalkanes, alcohols, esters, carboxylic acids, aldehydes, ketones, acyl chlorides, amines, amides, and polymers, including mechanisms and example reactions.