Publishing Excellence since 2025

Knowledge. Innovation. Education.

Shaping the future of African education with world-class publishing, research support, and academic materials from Ibadan, Nigeria.

GISS Knowledge Hub

Digital & Print Resources | Research Repository | African Scholarship

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About GISS Publishers

Empowering minds, shaping the future — Nigeria's trusted educational publisher.

Our Vision

To be Africa's leading publishing house, fostering knowledge development globally.

Our Mission

Deliver high-quality educational materials and consultancy for lifelong learning.

Core Values

Integrity, Excellence, Innovation, African Perspective, Global Standards.

Founder

Olutunde Olabamiji Adeosun

Founder & Chief Publisher | GISS Publishers Nigeria Enterprises

Olutunde Olabamiji Adeosun is the Founder and Publisher of GISS Publishers, bringing years of experience in editorial and educational publishing. He has held editorial roles at World Book, Bounty Press Limited, and University Press PLC...

Olutunde holds a Master’s degree in Publishing and Copyright Studies from the University of Ibadan, a Bachelor of Arts degree in Philosophy from Olabisi Onabanjo University, and a Higher National Diploma in Mass Communication from The Polytechnic Ibadan. He built a distinguished career in publishing, including his role at University Press PLC, where he worked in the Special Publications Unit, overseeing the production of literature, curriculum-based books, biographies, autobiographies, memoirs, and other titles. In April 2025, he founded GISS Publishers with a vision to raise the standard of educational and general publishing in Nigeria.

Manuscript Development Book Editing Translation Printing/Branding

Our Premium Services

Educational Publishing

Curriculum-based & creative learning resources.

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Book Printing

High-quality offset & digital printing.

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Academic Publishing

Journals, research papers, thesis support.

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Digital Publishing

Ebooks, interactive content, online platforms.

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Editing & Proofreading

Manuscript refinement & language polishing.

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Research Support

Data analysis, formatting, research coaching.

Assistance

Graphic Design & Branding

Book covers, brand identity, illustrations.

Portfolio

ISBN Registration

Fast & professional ISBN & book consultation.

Book Consult

Projects & Portfolio

Ibadan School Libraries Project

Printed 50,000+ educational pamphlets for Oyo state schools.

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National Literacy Campaign

Designed & published early-reader series in 3 Nigerian languages.

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Teacher’s Guide Series

Comprehensive curriculum support for secondary education.

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Digital E-library Platform

Launched interactive e-books for tertiary institutions.

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Publishing Insights & News

How AI is Transforming Publishing in Africa

June 2025 — GISS adopts editorial AI tools for faster production.

Full Article: Artificial Intelligence is reshaping the publishing landscape across Africa. At GISS Publishers, we've integrated AI-assisted editing tools that reduce proofreading time by 40% while maintaining linguistic nuance for local languages. Our AI models help suggest age-appropriate vocabulary for educational materials, and streamline metadata generation for digital catalogs. However, we maintain human oversight to preserve cultural relevance and authorial voice. This hybrid approach has accelerated our production cycle from manuscript to market by 30%, enabling faster delivery of textbooks to schools in Ibadan and beyond.

Author Workshop Ibadan 2026

August 2026 — Register for our Manuscript Development Masterclass.

Event Details: The GISS Author Workshop 2026 will hold from August 18–20, 2026 at the University of Ibadan Conference Centre. The masterclass covers: manuscript structuring, navigating ISBN registration, marketing for African authors, and digital publishing strategies. Facilitators include Prof. Adeyinka Ojo (UI) and Olutunde Adeosun. Early bird registration ends June 30, 2026. Participants receive a certificate and a consultation session. Limited slots — register via our contact form or WhatsApp.

GISS Earns ISO Certification

GISS receives ISO 9001:2025 certification for quality management.

Official Statement: GISS Publishers Nigeria Enterprises is proud to announce its ISO 9001:2025 certification for quality management in educational publishing and printing services. The certification follows a rigorous audit of our editorial workflows, printing standards, and customer support systems. This achievement reaffirms our pledge to deliver error-free, pedagogically sound materials to Nigerian schools and institutions. It positions GISS as a trusted partner for international academic collaborations.

Get In Touch

Office Address: Block C52, Scout Camp International Market, Challenge, Ibadan, Nigeria.

Phone: +234 805 593 3758

Email: adeosuntunde2@gmail.com

WhatsApp: +2348055933758

We'll respond within 24 hours.