In a corporate world obsessed with beginnings—first jobs, new roles, promotions—Deepak Kumar’s Those 90 Days: The Goodbye That Became a Beginning dares to focus on something far more uncomfortable yet equally defining: the end. This book is not just a story of resignation; it is a narrative of identity, resilience, and the quiet power of walking away with dignity.

The book opens with a striking moment of disruption. A seasoned professional, confident in his contributions and expecting growth, instead faces an unexpected and deeply unsettling reality. What follows is not a tale of revenge or bitterness, but a carefully layered exploration of how individuals respond when their value is questioned in spaces they helped build. This shift in focus—from external validation to internal clarity—forms the backbone of the book.

One of the most refreshing aspects of Those 90 Days is its narrative style. Structured across a timeline of days, the book captures the unfolding of events alongside the author’s evolving mindset. Each chapter feels like a window into a specific emotional and strategic state—shock, anger, reflection, recalibration, and eventually, renewal. This structure not only enhances readability but also mirrors the real-life progression of dealing with professional setbacks.

Kumar’s storytelling is sharp and immersive, especially in depicting corporate realities. He does not shy away from addressing uncomfortable truths—organizational politics, lack of transparency, and the fragile nature of professional loyalty. Through detailed scenarios, conversations, and internal reflections, the book paints a realistic picture of how quickly equations can change in the workplace. Yet, instead of turning cynical, the narrative maintains a tone of awareness and maturity.

A key strength of the book lies in its philosophical undertone. It repeatedly emphasizes that roles and designations are temporary, but character and choices define legacy. The idea that “how you exit matters as much as how you enter” is explored with depth and nuance. The protagonist’s refusal to accept an unjust pay cut is not portrayed as rebellion, but as a conscious decision rooted in self-respect. This moment becomes a turning point—not just in the story, but in the reader’s understanding of professional worth.

The emotional dimension of the book is equally powerful. Beyond boardrooms and business strategies, the narrative highlights the importance of personal support systems. The presence of the protagonist’s wife serves as a grounding force, offering strength, perspective, and reassurance at a time of vulnerability. These moments humanize the story and make it relatable beyond the corporate context.

Another compelling aspect is the subtle guidance the book offers. Without sounding preachy, it provides insights into handling difficult conversations, maintaining composure under pressure, and navigating uncertainty with clarity. The idea of transforming one’s exit period into a phase of strategic thinking and self-reinvention is particularly impactful. It encourages readers to see endings not as losses, but as transitions that can be shaped with intention.

However, the book does have moments where the narrative becomes heavily reflective, which might slow down the pace for some readers. Additionally, while the author’s journey is inspiring, it largely represents a leadership-level perspective. Readers from different professional stages might have appreciated a broader range of experiences.

That said, these are minor limitations in an otherwise strong and meaningful work. The authenticity of the voice, combined with the relevance of the theme, ensures that the book leaves a lasting impression.

What makes Those 90 Days truly stand out is its message. It reminds us that setbacks do not diminish our worth, and that sometimes, the most powerful move is not to fight harder within a system, but to step away from it with grace. In doing so, the book redefines success—not as staying at the top, but as staying true to oneself.

In conclusion, Deepak Kumar delivers a thought-provoking and emotionally resonant book that speaks to modern professionals navigating uncertainty and change. Those 90 Days is not just about leaving a job; it is about reclaiming identity, rebuilding confidence, and embracing new beginnings with courage. It is a must-read for anyone who has ever faced an unexpected turn in their career and wondered what comes next.

About the author: Deepak Kumar is a senior technology and presales leader with over two decades of experience leading global teams and complex transformation initiatives across large enterprises. For much of his career, his work was defined by execution, precision, and results—building systems, scaling teams, and partnering closely with senior leadership across industries. Then, quietly, something shifted. Roles ended. Alignment changed. Silence replaced clarity. That final stretch of his professional journey led him to reflect not just on systems and outcomes, but on people—on how leadership is tested most profoundly during transitions, exits, and moments of uncertainty. Those 90 Days is his first book, written from lived experience rather than hindsight. Through restraint and reflection, he explores how integrity, silence, and self-respect shape not only how we leave—but who we become after. His work today sits at the intersection of leadership and humanity, guided by a simple belief: that how we end things matters as much as how we begin them.