We published 20 Behind the Papers in February - here's our three most viewed posts: 

• Jun Yao on making different forms of the same polymer by utilising different packing topologies. 
• A new method for generating complex chemical compounds based on carbon-hydrogen functionalisation by Zachary Garlets.  
• And, following-up on his previous post, George Karageorgis describes the principles behind designing pseudo-natural product libraries. 

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Poster image inspired by George's post (from Pixabay).