B1 Writing

Luis Porras Wadley

Writing B1: The Ultimate PET Writing Guide for B1 Cambridge (Guías de Writing para Exámenes de Cambridge)

Prosperity Education

B1 Writing: Ten practice tests for the Cambridge Preliminary

Collins

Writing: B1+ (Collins English for Life: Skills)  

Prosperity Education

B1 Writing: Cambridge Masterclass with practice tests (Cambridge Writing Masterclass)

Independently published

Writing Practice Workbook For B1-B2              

B1 Writing                                      

Independently published

Complete Practice For B1-B2: For Cambridge, TOEFL, IELTS, EOI, Pearson

Prosperity Education

Introduction to Cambridge Writing Masterclass: B1, B2, C1, C2 (English Edition)

Independently published

Writing practice B1: Cambridge PET and PET fs: Complete guide and exam practice for the Preliminary exam writing paper.

Collins

Business Writing: B1-C2 (Collins Business Skills and Communication)